There are methods similar to firstOrcreate, updateOrCreate but to update the record or not (details inside)?

Question

Laravel

Good afternoon. The task is something like this. A certain slug comes to the method, we look in the table if there is an entry with such a value. If there is, add the user_id (we get via auth()->user()->id) of the user, if this user_id is not there. If there is already some user_id in this entry found by slug, we do not touch anything. Is there a ready-made method for this, or do I need to come up with something of my own? If not, what is the best way to do it?