diff --git a/src/Domain/User.php b/src/Domain/User.php
index 6edda0b..2b70d3a 100644
--- a/src/Domain/User.php
+++ b/src/Domain/User.php
@@ -4,5 +4,12 @@ namespace DigiWill\Domain;
 
 class User
 {
+    public function __construct(
+        private ?int $id
+    ) {}
 
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
 }