Fix token auto create signal

apps/user/models.py

@@ -1,4 +1,6 @@
 from django.db import models
+from django.db.models.signals import post_save
+from django.dispatch import receiver
 from django.contrib.auth.models import AbstractUser, UserManager
 from django.contrib.postgres import fields as pgfields
 from django.utils.translation import gettext_lazy as _
@@ -59,8 +61,9 @@ class User(AbstractUser):
         user_data = dumps(user_data, ensure_ascii=False)
         return user_data
 
-    @receiver(post_save, sender=User)
-    def create_auth_token(sender, instance=None, created=False, **kwargs):
+
+@receiver(post_save, sender=User)
+def create_auth_token(sender, instance=None, created=False, **kwargs):
     if (
         (instance.is_active or instance.fb_id) and
         instance.role in [User.AUTHOR_ROLE, User.ADMIN_ROLE] and not