diff --git a/mailpoet/lib/Automation/Integrations/Core/Actions/DelayAction.php b/mailpoet/lib/Automation/Integrations/Core/Actions/DelayAction.php
index 0a0dbbea56..befca304a2 100644
--- a/mailpoet/lib/Automation/Integrations/Core/Actions/DelayAction.php
+++ b/mailpoet/lib/Automation/Integrations/Core/Actions/DelayAction.php
@@ -4,8 +4,8 @@ namespace MailPoet\Automation\Integrations\Core\Actions;
 
 use MailPoet\Automation\Engine\Control\ActionScheduler;
 use MailPoet\Automation\Engine\Data\Step;
+use MailPoet\Automation\Engine\Data\StepRunArgs;
 use MailPoet\Automation\Engine\Data\Workflow;
-use MailPoet\Automation\Engine\Data\WorkflowRun;
 use MailPoet\Automation\Engine\Hooks;
 use MailPoet\Automation\Engine\Workflows\Action;
 use MailPoet\Validator\Builder;
@@ -40,11 +40,12 @@ class DelayAction implements Action {
     return [];
   }
 
-  public function run(Workflow $workflow, WorkflowRun $workflowRun, Step $step): void {
+  public function run(StepRunArgs $args): void {
+    $step = $args->getStep();
     $nextStep = $step->getNextSteps()[0] ?? null;
     $this->actionScheduler->schedule(time() + $this->calculateSeconds($step), Hooks::WORKFLOW_STEP, [
       [
-        'workflow_run_id' => $workflowRun->getId(),
+        'workflow_run_id' => $args->getWorkflowRun()->getId(),
         'step_id' => $nextStep ? $nextStep->getId() : null,
       ],
     ]);
diff --git a/mailpoet/lib/Automation/Integrations/MailPoet/Actions/SendEmailAction.php b/mailpoet/lib/Automation/Integrations/MailPoet/Actions/SendEmailAction.php
index aa51b4819a..0e8044d694 100644
--- a/mailpoet/lib/Automation/Integrations/MailPoet/Actions/SendEmailAction.php
+++ b/mailpoet/lib/Automation/Integrations/MailPoet/Actions/SendEmailAction.php
@@ -3,10 +3,12 @@
 namespace MailPoet\Automation\Integrations\MailPoet\Actions;
 
 use MailPoet\Automation\Engine\Data\Step;
+use MailPoet\Automation\Engine\Data\StepRunArgs;
 use MailPoet\Automation\Engine\Data\Workflow;
-use MailPoet\Automation\Engine\Data\WorkflowRun;
 use MailPoet\Automation\Engine\Workflows\Action;
 use MailPoet\Automation\Engine\Workflows\Subject;
+use MailPoet\Automation\Integrations\MailPoet\Payloads\SegmentPayload;
+use MailPoet\Automation\Integrations\MailPoet\Payloads\SubscriberPayload;
 use MailPoet\Automation\Integrations\MailPoet\Subjects\SegmentSubject;
 use MailPoet\Automation\Integrations\MailPoet\Subjects\SubscriberSubject;
 use MailPoet\Entities\NewsletterEntity;
@@ -96,30 +98,44 @@ class SendEmailAction implements Action {
     return count($segmentSubjects) === 1 && count($subscriberSubjects) === 1;
   }
 
-  public function run(Workflow $workflow, WorkflowRun $workflowRun, Step $step): void {
-    $newsletter = $this->getEmailForStep($step);
-    $subscriberSubject = $workflowRun->requireSingleSubject(SubscriberSubject::class);
-    $subscriber = $subscriberSubject->getSubscriber();
+  public function run(StepRunArgs $args): void {
+    $newsletter = $this->getEmailForStep($args->getStep());
 
-    if ($subscriber->getStatus() !== SubscriberEntity::STATUS_SUBSCRIBED) {
-      throw InvalidStateException::create()->withMessage(sprintf("Cannot schedule a newsletter for subscriber ID '%s' because their status is '%s'.", $subscriber->getId(), $subscriber->getStatus()));
+    $segmentPayload = $args->getSingleSubjectEntry('mailpoet:segment')->getPayload();
+    if (!$segmentPayload instanceof SegmentPayload) {
+      throw new InvalidStateException();
     }
+    $segmentId = $segmentPayload->getId();
+
+    $subscriberPayload = $args->getSingleSubjectEntry('mailpoet:subscriber')->getPayload();
+    if (!$subscriberPayload instanceof SubscriberPayload) {
+      throw new InvalidStateException();
+    }
+    $subscriberId = $subscriberPayload->getId();
 
-    $segmentSubject = $workflowRun->requireSingleSubject(SegmentSubject::class);
-    $segmentId = $segmentSubject->getSegment()->getId();
     $subscriberSegment = $this->subscriberSegmentRepository->findOneBy([
-      'subscriber' => $subscriber,
+      'subscriber' => $subscriberId,
       'segment' => $segmentId,
       'status' => SubscriberEntity::STATUS_SUBSCRIBED,
     ]);
 
-    if ($subscriberSegment === null) {
-      throw InvalidStateException::create()->withMessage(sprintf("Subscriber ID '%s' is not subscribed to segment ID '%s'.", $subscriber->getId(), $segmentId));
+    if (!$subscriberSegment) {
+      throw InvalidStateException::create()->withMessage(sprintf("Subscriber ID '%s' is not subscribed to segment ID '%s'.", $subscriberId, $segmentId));
     }
 
-    $previouslyScheduledNotification = $this->scheduledTasksRepository->findByNewsletterAndSubscriberId($newsletter, (int)$subscriber->getId());
+    $subscriber = $subscriberSegment->getSubscriber();
+    if (!$subscriber) {
+      throw InvalidStateException::create();
+    }
+
+    $subscriberStatus = $subscriber->getStatus();
+    if ($subscriberStatus !== SubscriberEntity::STATUS_SUBSCRIBED) {
+      throw InvalidStateException::create()->withMessage(sprintf("Cannot schedule a newsletter for subscriber ID '%s' because their status is '%s'.", $subscriberId, $subscriberStatus));
+    }
+
+    $previouslyScheduledNotification = $this->scheduledTasksRepository->findByNewsletterAndSubscriberId($newsletter, $subscriberId);
     if (!empty($previouslyScheduledNotification)) {
-      throw InvalidStateException::create()->withMessage(sprintf("Subscriber ID '%s' was already scheduled to receive newsletter ID '%s'.", $subscriber->getId(), $newsletter->getId()));
+      throw InvalidStateException::create()->withMessage(sprintf("Subscriber ID '%s' was already scheduled to receive newsletter ID '%s'.", $subscriberId, $newsletter->getId()));
     }
 
     try {
diff --git a/mailpoet/tests/integration/Automation/Engine/Data/WorkflowRunLogTest.php b/mailpoet/tests/integration/Automation/Engine/Data/WorkflowRunLogTest.php
index d2695e69c1..2b7ae8135e 100644
--- a/mailpoet/tests/integration/Automation/Engine/Data/WorkflowRunLogTest.php
+++ b/mailpoet/tests/integration/Automation/Engine/Data/WorkflowRunLogTest.php
@@ -3,6 +3,7 @@
 namespace MailPoet\Test\Automation\Engine\Data;
 
 use MailPoet\Automation\Engine\Control\StepHandler;
+use MailPoet\Automation\Engine\Data\StepRunArgs;
 use MailPoet\Automation\Engine\Data\Step;
 use MailPoet\Automation\Engine\Data\Workflow;
 use MailPoet\Automation\Engine\Data\WorkflowRun;
@@ -294,9 +295,9 @@ class TestAction implements Action {
     return true;
   }
 
-  public function run(Workflow $workflow, WorkflowRun $workflowRun, Step $step): void {
+  public function run(StepRunArgs $args): void {
     if ($this->callback) {
-      ($this->callback)($workflow, $workflowRun, $step);
+      ($this->callback)($args);
     }
   }
 
diff --git a/mailpoet/tests/integration/Automation/Integrations/Core/Actions/DelayActionTest.php b/mailpoet/tests/integration/Automation/Integrations/Core/Actions/DelayActionTest.php
index c4a320d0ba..211669ab90 100644
--- a/mailpoet/tests/integration/Automation/Integrations/Core/Actions/DelayActionTest.php
+++ b/mailpoet/tests/integration/Automation/Integrations/Core/Actions/DelayActionTest.php
@@ -4,6 +4,7 @@ namespace MailPoet\Test\Automation\Integrations\Core\Actions;
 
 use MailPoet\Automation\Engine\Control\ActionScheduler;
 use MailPoet\Automation\Engine\Data\NextStep;
+use MailPoet\Automation\Engine\Data\StepRunArgs;
 use MailPoet\Automation\Engine\Data\Step;
 use MailPoet\Automation\Engine\Data\Workflow;
 use MailPoet\Automation\Engine\Data\WorkflowRun;
@@ -40,11 +41,7 @@ class DelayActionTest extends \MailPoetTest {
       ]]
     );
     $testee = new DelayAction($actionScheduler);
-    $testee->run(
-      $workflow,
-      $workflowRun,
-      $step
-    );
+    $testee->run(new StepRunArgs($workflow, $workflowRun, $step, []));
   }
 
   public function dataForTestItCalculatesDelayTypesCorrectly() : array {
diff --git a/mailpoet/tests/integration/Automation/Integrations/MailPoet/Actions/SendEmailActionTest.php b/mailpoet/tests/integration/Automation/Integrations/MailPoet/Actions/SendEmailActionTest.php
index 4afd688ae8..8658655bc7 100644
--- a/mailpoet/tests/integration/Automation/Integrations/MailPoet/Actions/SendEmailActionTest.php
+++ b/mailpoet/tests/integration/Automation/Integrations/MailPoet/Actions/SendEmailActionTest.php
@@ -2,7 +2,10 @@
 
 namespace MailPoet\Test\Automation\Integrations\MailPoet\Actions;
 
+use MailPoet\Automation\Engine\Data\StepRunArgs;
 use MailPoet\Automation\Engine\Data\Step;
+use MailPoet\Automation\Engine\Data\Subject;
+use MailPoet\Automation\Engine\Data\SubjectEntry;
 use MailPoet\Automation\Engine\Data\Workflow;
 use MailPoet\Automation\Engine\Data\WorkflowRun;
 use MailPoet\Automation\Integrations\MailPoet\Actions\SendEmailAction;
@@ -100,7 +103,7 @@ class SendEmailActionTest extends \MailPoetTest {
       ->withStatus(SubscriberEntity::STATUS_SUBSCRIBED)
       ->withSegments([$segment])
       ->create();
-    $subjects = $this->getLoadedSubjects($subscriber, $segment);
+    $subjects = $this->getSubjectData($subscriber, $segment);
     $email = (new Newsletter())->withAutomationType()->create();
 
     $step = new Step('step-id', Step::TYPE_ACTION, 'step-key', ['email_id' => $email->getId()], []);
@@ -110,7 +113,7 @@ class SendEmailActionTest extends \MailPoetTest {
     $scheduled = $this->scheduledTasksRepository->findByNewsletterAndSubscriberId($email, (int)$subscriber->getId());
     expect($scheduled)->count(0);
 
-    $this->action->run($workflow, $run, $step);
+    $this->action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
 
     $scheduled = $this->scheduledTasksRepository->findByNewsletterAndSubscriberId($email, (int)$subscriber->getId());
     expect($scheduled)->count(1);
@@ -122,7 +125,7 @@ class SendEmailActionTest extends \MailPoetTest {
       ->withStatus(SubscriberEntity::STATUS_SUBSCRIBED)
       ->withSegments([$segment])
       ->create();
-    $subjects = $this->getLoadedSubjects($subscriber, $segment);
+    $subjects = $this->getSubjectData($subscriber, $segment);
     $email = (new Newsletter())->withAutomationType()->create();
 
     $step = new Step('step-id', Step::TYPE_ACTION, 'step-key', ['email_id' => $email->getId()], []);
@@ -133,13 +136,13 @@ class SendEmailActionTest extends \MailPoetTest {
     expect($scheduled)->count(0);
 
     $action = ContainerWrapper::getInstance()->get(SendEmailAction::class);
-    $action->run($workflow, $run, $step);
+    $action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
 
     $scheduled = $this->scheduledTasksRepository->findByNewsletterAndSubscriberId($email, (int)$subscriber->getId());
     expect($scheduled)->count(1);
 
     try {
-      $action->run($workflow, $run, $step);
+      $action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
     } catch (InvalidStateException $exception) {
       // The exception itself isn't as important as the outcome
     }
@@ -154,7 +157,7 @@ class SendEmailActionTest extends \MailPoetTest {
       ->withStatus(SubscriberEntity::STATUS_SUBSCRIBED)
       ->withSegments([$segment])
       ->create();
-    $subjects = $this->getLoadedSubjects($subscriber, $segment);
+    $subjects = $this->getSubjectData($subscriber, $segment);
     $email = (new Newsletter())->withAutomationType()->create();
 
     $step = new Step('step-id', Step::TYPE_ACTION, 'step-key', ['email_id' => $email->getId()], []);
@@ -168,7 +171,7 @@ class SendEmailActionTest extends \MailPoetTest {
     $action = ContainerWrapper::getInstance()->get(SendEmailAction::class);
 
     try {
-      $action->run($workflow, $run, $step);
+      $action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
     } catch (Exception $exception) {
       // The exception itself isn't as important as the outcome
     }
@@ -183,7 +186,7 @@ class SendEmailActionTest extends \MailPoetTest {
       ->withStatus(SubscriberEntity::STATUS_SUBSCRIBED)
       ->withSegments([$segment])
       ->create();
-    $subjects = $this->getLoadedSubjects($subscriber, $segment);
+    $subjects = $this->getSubjectData($subscriber, $segment);
     $email = (new Newsletter())->withAutomationType()->create();
 
     $step = new Step('step-id', Step::TYPE_ACTION, 'step-key', ['email_id' => $email->getId()], []);
@@ -197,7 +200,7 @@ class SendEmailActionTest extends \MailPoetTest {
     $action = ContainerWrapper::getInstance()->get(SendEmailAction::class);
 
     try {
-      $action->run($workflow, $run, $step);
+      $action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
     } catch (Exception $exception) {
       // The exception itself isn't as important as the outcome
     }
@@ -221,7 +224,7 @@ class SendEmailActionTest extends \MailPoetTest {
         ->withStatus($status)
         ->withSegments([$segment])
         ->create();
-      $subjects = $this->getLoadedSubjects($subscriber, $segment);
+      $subjects = $this->getSubjectData($subscriber, $segment);
       $email = (new Newsletter())->withAutomationType()->create();
 
       $step = new Step('step-id', Step::TYPE_ACTION, 'step-key', ['email_id' => $email->getId()], []);
@@ -235,7 +238,7 @@ class SendEmailActionTest extends \MailPoetTest {
       $action = ContainerWrapper::getInstance()->get(SendEmailAction::class);
 
       try {
-        $action->run($workflow, $run, $step);
+        $action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
       } catch (Exception $exception) {
         // The exception itself isn't as important as the outcome
       }
@@ -250,7 +253,7 @@ class SendEmailActionTest extends \MailPoetTest {
     $subscriber = (new Subscriber())
       ->withStatus(SubscriberEntity::STATUS_SUBSCRIBED)
       ->create();
-    $subjects = $this->getLoadedSubjects($subscriber, $segment);
+    $subjects = $this->getSubjectData($subscriber, $segment);
     $email = (new Newsletter())->withAutomationType()->create();
 
     $step = new Step('step-id', Step::TYPE_ACTION, 'step-key', ['email_id' => $email->getId()], []);
@@ -263,7 +266,7 @@ class SendEmailActionTest extends \MailPoetTest {
     $action = ContainerWrapper::getInstance()->get(SendEmailAction::class);
 
     try {
-      $action->run($workflow, $run, $step);
+      $action->run(new StepRunArgs($workflow, $run, $step, $this->getSubjectEntries($subjects)));
     } catch (Exception $exception) {
       // The exception itself isn't as important as the outcome
     }
@@ -272,20 +275,6 @@ class SendEmailActionTest extends \MailPoetTest {
     expect($scheduled)->count(0);
   }
 
-  private function getLoadedSubscriberSubject(SubscriberEntity $subscriber): SubscriberSubject {
-    $subscriberSubject = $this->diContainer->get(SubscriberSubject::class);
-    $subscriberSubject->load(['subscriber_id' => $subscriber->getId()]);
-
-    return $subscriberSubject;
-  }
-
-  private function getLoadedSegmentSubject(SegmentEntity $segment): SegmentSubject {
-    $segmentSubject = $this->diContainer->get(SegmentSubject::class);
-    $segmentSubject->load(['segment_id' => $segment->getId()]);
-
-    return $segmentSubject;
-  }
-
   private function getSubjects(): array {
     return [
       $this->segmentSubject,
@@ -293,10 +282,23 @@ class SendEmailActionTest extends \MailPoetTest {
     ];
   }
 
-  private function getLoadedSubjects(SubscriberEntity $subscriber, SegmentEntity $segment): array {
+  private function getSubjectData(SubscriberEntity $subscriber, SegmentEntity $segment): array {
     return [
-      $this->getLoadedSubscriberSubject($subscriber),
-      $this->getLoadedSegmentSubject($segment),
+      new Subject('mailpoet:segment', ['segment_id' => $segment->getId()]),
+      new Subject('mailpoet:subscriber', ['subscriber_id'=> $subscriber->getId()]),
+    ];
+  }
+
+  private function getSubjectEntries(array $subjects): array {
+    $segmentData = array_filter($subjects, function (Subject $subject) {
+      return $subject->getKey() === 'mailpoet:segment';
+    });
+    $subscriberData = array_filter($subjects, function (Subject $subject) {
+      return $subject->getKey() === 'mailpoet:subscriber';
+    });
+    return [
+      new SubjectEntry($this->segmentSubject, reset($segmentData)),
+      new SubjectEntry($this->subscriberSubject, reset($subscriberData)),
     ];
   }