Laravel PayU - Premium content and subscription

I'm using laravel 5.6 and creating payments for the first time. I'm using the below package as their documentation is simple and awesome. PayU Money Payment Gateway Laravel

I did exactly same as mentioned in documentation so not posting any code here. Now i can process payments and check status of the payments. My question is the application has premium content. Lets say for example a user searches for a trainer and books him for a package. Once he makes the payments, on his dashboard he will be able to view workplan sent by the trainer.

If i use is_premium column in the users table which is boolean, how would i change the value automatically when the user makes payment. And i have no idea how to implement the monthly subscription. I'm guessing adding a expires_at column and adding a date.

Is there a example or tutorial that can help me. Any suggestions or thoughts from experienced developers would be helpful.

via Chebli Mohamed