Lumen framework backend developer needed to make a api to add subscription in mobile app

the apis will be called from our android app there are 2 different kinds of content in the app, free and paid paid content is available on basis of subscription if the user has subscribed, he becomes a premium user by default, the user will be a free user, once he pays, he becomes a premium user we need an api to convert a free user to a premium student also while logging in, we need to get that information ( whether the customer is free or paid ) you can make the changes in the db accordingly, but please make sure that it does not affect the existing apis. Who you are: You should be familiar with Lumen framework. You should have enough experience with premium subscription implement.