diff --git a/app/stub.py b/app/stub.py
index 87c958f..9bc933d 100644
--- a/app/stub.py
+++ b/app/stub.py
@@ -26,32 +26,28 @@ def populate_data():
             "description": "Description A",
             "location": [48.858296, 2.294526],
             "files": ["file_a"],
-            "owner": str(user1_id),
-            "created_at": datetime.utcnow()
+            "user_id": str(user1_id)
         },
         {
             "title": f"Mont St Michel",
             "description": "Description B",
             "location": [48.636111, -1.511389],
             "files": ["file_b"],
-            "owner": str(user1_id),
-            "created_at": datetime.utcnow()
+            "user_id": str(user1_id)
         },
         {
             "title": f"Eiffel Tower",
             "description": "Description X",
             "location": [48.858296, 2.294526],
             "files": ["file_x"],
-            "owner": str(user2_id),
-            "created_at": datetime.utcnow()
+            "user_id": str(user2_id)
         },
         {
             "title": f"Mont Saint Michel",
             "description": "Description Y",
             "location": [48.636111, -1.511389],
             "files": ["file_y"],
-            "owner": str(user2_id),
-            "created_at": datetime.utcnow()
+            "user_id": str(user2_id)
         }
     ])