Web page where each user can select new lists and unsubscribe from those already subscribed

Hi everyone. I can’t give myself an answer (I have the feeling of asking an obvious question). How does a user go to his profile and check the lists he is currently subscribed to and unsubscribe from them. I imagine that there is an internet page where all the lists are available and the user has checked only those to which he is currently subscribed. Obviously I am not referring to the public subscription pages …
thanks for the help you will give me