You can apply these ranks on Here.

YouTube Requirements

1. The subscriber count of your channel must be at least 300 people.
   
2. Your average view count of your last 10 videos should be at least 300 times, including a scene playing TeamCocoa in one of them.
3. Appropriate behavior is required.

YouTube+ Requirements

1. The subscriber count of your channel must be at least 1000 people.
   
2. Your average view count of your last 10 videos should be at least 500 times, including a scene playing TeamCocoa in one of them.
3. Your channel's main content should be related with minecraft.
4. Appropriate behavior is required.