We have 2 kinds of push notifications:
* marketing notifications, which we usually send to most of of users. Our marketing team sends these notifications from the dashboard.
* transactional notifications, which are sent to named users. These notifications are sent through our back-end using UA REST API.
We'd like to present a new screen in our mobile app, allowing users to switch off and on both or one these 2 types of notifications.
What is the best way to do this?