Firebase: database for content providers and endusers


#1

I want to develop an app where I have trusted/known content providers and many endusers for an Android App.
How can I set up the database used by the content providers effectively?
I want to give them access to a google sheets like database in which they can enter data from an ordinary PC, and in which some columns are secured by the developer - eg kind of topic.
How can I handle this best?