You can modify a contact’s information and subscription status manually.
To access the activity for a particular recipient, access your list and click on Manage Subscribers on the left hand menu. Clicking on the recipient’s email will give you access to the recipient’s profile and list of activities, including when they signed up, and latest emails they have opened.
You may change all fields except for Sign Up Date.
If you wish to unsubscribe the recipient, click on Unsubscribe this recipient on the left hand menu.
To download the information you are currently viewing to your computer, click on Export activity as CSV on the left hand menu.