How to subscribe to a manga on mangago?

You scroll down for a bit and there will be this green box and it says 'add to list' so you click on that and add it to you list (that's how you subscribe). If you don't have a list then you make one.

Do you get a noctification when there’s a new chapter?

If you want to get notification to a manga, you click as "now reading" or "already read"

thank you!