Subscription types
- time-based: the user can access the service for a predeterminded period of time (e.g.: one day, two days, one week, etc)
- consumption-based: the user can access the service for a predeterminded total duration, for example 30 minutes can be used over a period of time (10 minutes on the first day, 10 minutes on another day and 10 minutes on yet another day).
