Thanks for your question. I am assuming by unsubscribe you mean you are getting too many emails or notifications.
To customize what you get notifications on, go to:
My home > My accounts
You will see a Notifications tab and a Subscriptions tab. There you can chose what actions, if any, you get a notice/email for.
I hope this helps. If I have misunderstood your question, please use the blue "Leave a message" button in the bottom of most screens to email the team and we will do our best to help you