You'd need 1000 subscribers and 4000 watch hours in the past 12 months to be eligible for monetization. Here are the detailed steps here: https://goo.gl/5joiih . Hope this helps!
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.