How to detect with an Event in Laravel if a mysql record is completed in several fields by several asynchronous requests?

I have several requests that update the same record of a mysql database in asynchronous form (at different times). The record has 5 text fields (apart from the id , etc) that are completed separately by these different requests.

Question: Is there any way for Laravel to detect that this record already has the 5 updated fields (not one, not two, not three, but the 5 already complete, that is to say that all the requests have already arrived and none are missing? ) and there is triggered a method of a controller?