Wanting to add an led what would illuminate when the magnet is activated in a Spike 2 machine. Has anyone done this or have insight on what I would need?

Thanks for the suggestions.

Reason I was asking:
Buddy has a Mandalorian with one of the animated Grogu dolls that goes on and off all the time, even in attract mode (runs off optical sensor) which gets irritating after awhile. My thought was to have a light tied into the magnet so it would only go off during actual gameplay.