Explicit field names are better than implicit ones.

profile/serializers.py

@@ -25,4 +25,12 @@ from rest_framework import serializers
 class ProfileSerializer(serializers.ModelSerializer):
     class Meta:
         model = Profile
-        fields = "__all__"
+        fields = (
+            "user",
+            "cba_username",
+            "cba_user_token",
+            "created_at",
+            "created_by",
+            "updated_at",
+            "updated_by",
+        )