Soft removal in the rod using the laravel synchronization method

Question

I want to synchronize some relationships in the user table, and I do not want Laravel to delete the row, I want to do some updates on this row (for example, fill out delete_at) I searched so far, and only the solution I found is to override synchronization method.

So, how can I override the synchronization method to update the string?

Or what other solution for this problem?

EDITED: I know the problem is with the detach method, if I can override the detach It will be solved!

thanks