What's the best practice to implement software license validation in aMember?

For example, each time the software starts on client side it will send an request to server side to check if the license is valid.

From what I can think of is to add new fields/columns into the user table of the mysql database to store licenses/hardware ids etc, and write my own script to process requests from client side and directly read/update from the mysql database to check if the license is valid.

Is there a better way to do all this? Or maybe aMember already provide a full package of solutions for this?