How to fix Facebook Groups UX (Concept)

How to fix Facebook Groups UX (Concept), before they implement Subscription Groups:

I made a quick UX concept with the simplest solution for that issue, I think it could be implemented very easily by Facebook, at least until Facebook will do something better… But until they'll take it seriously, here's what I want to see as a user.

Read my article on Medium for more details:
https://hackernoon.com/how-to-fix-facebook-groups-ux-36209dd6f6a8