is_liked inside the stored names object.request_key (Baby-XXXXX), name_key (e.g. baby-001), is_liked (bool)200 - returns { message: "Name preference updated" }. The new state is reflected on the next GET /child/result/{request_key}.401 - invalid/expired token | 404 - the name_key is not present in this request, or the request_key does not belong to the user | 422 - missing/invalid body fields