Under "Minecraft Commercial Usage Guidelines", you may create, use and distribute videos and streams of you playing or using Minecraft for any lawful reason and you may monetize them under the following conditions:

videos are free to view (no paywall)

streams are made free to view within 24 hours

unique content is added to the video or stream, such as audio commentary or construction of buildings or art

advertising or promoting other products or services is prohibited

selling physical copies of videos or streams is prohibited

broadcasting or distributing videos or streams via television is prohibited

Source: Mojang Terms and Conditions