So I've been trying to figure out how I can register an event that allows me to know when a user on the back office has added a member to a group. I understand that umbraco has moved to using the Microsoft MembershipProvider, and that the umbraco.cms.businesslogic Member is considered obsolete and we should be using the new Membership Service.

However, I don't see any events available in the new API that allow for events that are fired when a member is added to a group. The only place I can find that allows you to register for group changes is on the old umbraco.cms.businesslogic Member, the AfterAddGroup event. The docs even demonstrate that the way to register events is through event handlers: http://our.umbraco.org/documentation/Reference/Events/application-startup

Is there some event I can register to when a member is added to a group somewhere in the v7 api?