Connections allows to an user to save an entry and added it into a Saved/Favorite list (atom feed) so Connections can tracking that events that are of specific interest to a user. Connections also allows to remove an entry from that list. Here's one easy way to do it with an asynchronous HTTP (Ajax) request using jQuery.
IBM Connections 4 documentation link: Support for Saved and Actionable Events
Atom API Request Details
|Content-Type : application/json|
|Response||Status Code: 200 OK|
Note: The only element that requires value is connections, the rest should be sent empty.
Example using jQuery
Note: console.log can throw errors in IE, they are there for illustrative purposes only and should be changed as required.