diff --git a/application/src/Controller/DefaultController.php b/application/src/Controller/DefaultController.php
index ab57868..40ccf1e 100644
--- a/application/src/Controller/DefaultController.php
+++ b/application/src/Controller/DefaultController.php
@@ -6,11 +6,12 @@ use Symfony\Component\Routing\Annotation\Route;
 use Symfony\Component\HttpFoundation\Response;
 use App\DBAL\Types\SystemSlugType;
 use App\Entity\Source\AbstractSource;
-use App\Entity\User;
 use App\Domain\SecureLoadManagement\SecureSourceLoader;
 use App\Entity\Meta\Right;
 use App\DBAL\Types\LayerType;
 use App\DBAL\Types\RightType;
+use App\Domain\UserManagement\UserIdentityManager;
+use Doctrine\ORM\EntityManagerInterface;
 
 /**
  * This controller offers the standart routes for the template.
@@ -23,16 +24,10 @@ class DefaultController extends AbstractEntityController
      * @todo Optimize function!
      * @Route("/imprint", name="imprint")
      */
-    public function imprint(): Response
+    public function imprint(EntityManagerInterface $entityManager): Response
     {
-        if ($this->getUser()) {
-            $user = $this->getUser();
-        } else {
-            $user = new User();
-            $user->setSource($this->getDoctrine()
-                ->getRepository(AbstractSource::class)
-                ->findOneBySlug(SystemSlugType::GUEST_USER));
-        }
+        $userIdentityManager = new UserIdentityManager($entityManager, $this->getUser());
+        $user = $userIdentityManager->getUser();
         $requestedSource = new class() extends AbstractSource {
         };
         $requestedSource->setSlug(SystemSlugType::IMPRINT);
diff --git a/application/src/Domain/UserManagement/UserIdentityManager.php b/application/src/Domain/UserManagement/UserIdentityManager.php
new file mode 100644
index 0000000..5fd78b1
--- /dev/null
+++ b/application/src/Domain/UserManagement/UserIdentityManager.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Domain\UserManagement;
+
+use App\Entity\UserInterface;
+use Doctrine\ORM\EntityManagerInterface;
+use App\DBAL\Types\SystemSlugType;
+use App\Entity\User;
+use App\Entity\Source\AbstractSource;
+use App\Repository\Source\SourceRepository;
+
+/**
+ * @author kevinfrantz
+ */
+final class UserIdentityManager implements UserIdentityManagerInterface
+{
+    /**
+     * @var UserInterface
+     */
+    private $user;
+
+    /**
+     * @var SourceRepository
+     */
+    private $sourceRepository;
+
+    /**
+     * @param EntityManagerInterface $entityManager
+     */
+    private function setSourceRepository(EntityManagerInterface $entityManager): void
+    {
+        $this->sourceRepository = $entityManager->getRepository(AbstractSource::class);
+    }
+
+    /**
+     * @param UserInterface $user
+     */
+    private function setUser(?UserInterface $user): void
+    {
+        if ($user) {
+            $this->user = $user;
+
+            return;
+        }
+        $this->user = new User();
+        $this->user->setSource($this->sourceRepository->findOneBySlug(SystemSlugType::GUEST_USER));
+    }
+
+    /**
+     * @param EntityManagerInterface $entityManager
+     * @param UserInterface          $user
+     */
+    public function __construct(EntityManagerInterface $entityManager, ?UserInterface $user)
+    {
+        $this->setSourceRepository($entityManager);
+        $this->setUser($user);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see \App\Domain\UserManagement\UserIdentityManagerInterface::getUser()
+     */
+    public function getUser(): UserInterface
+    {
+        return $this->user;
+    }
+}
diff --git a/application/src/Domain/UserManagement/UserIdentityManagerInterface.php b/application/src/Domain/UserManagement/UserIdentityManagerInterface.php
new file mode 100644
index 0000000..406210a
--- /dev/null
+++ b/application/src/Domain/UserManagement/UserIdentityManagerInterface.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Domain\UserManagement;
+
+use App\Entity\UserInterface;
+
+interface UserIdentityManagerInterface
+{
+    /**
+     * @return UserInterface
+     */
+    public function getUser(): UserInterface;
+}
diff --git a/application/tests/Unit/Domain/UserManagement/UserIdentityManagerTest.php b/application/tests/Unit/Domain/UserManagement/UserIdentityManagerTest.php
new file mode 100644
index 0000000..7df6504
--- /dev/null
+++ b/application/tests/Unit/Domain/UserManagement/UserIdentityManagerTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Tests\Unit\Domain\UserManagement;
+
+use App\Domain\UserManagement\UserIdentityManager;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use App\DBAL\Types\SystemSlugType;
+use App\Entity\User;
+
+class UserIdentityManagerTest extends KernelTestCase
+{
+    /**
+     * @var EntityManagerInterface
+     */
+    private $entityManager;
+
+    public function setUp(): void
+    {
+        self::bootKernel();
+        $this->entityManager = self::$container->get('doctrine.orm.default_entity_manager');
+    }
+
+    public function testGuestUser(): void
+    {
+        $origineUser = null;
+        $userIdentityManager = new UserIdentityManager($this->entityManager, $origineUser);
+        $expectedUser = $userIdentityManager->getUser();
+        $this->assertEquals(SystemSlugType::GUEST_USER, $expectedUser->getSource()->getSlug());
+    }
+
+    public function testUser(): void
+    {
+        $origineUser = new User();
+        $userIdentityManager = new UserIdentityManager($this->entityManager, $origineUser);
+        $expectedUser = $userIdentityManager->getUser();
+        $this->assertEquals($origineUser, $expectedUser);
+    }
+}