post
https://app.asana.com/api/1.0/users//notifications/markUnread
Required scope: notifications:write
Marks only the given notifications as unread for the authenticated user. A notification that is archived is also unarchived and moves to the top of Inbox, matching the Inbox UI's unarchive action. Notifications already in Inbox keep their existing position. A user may only mark their own notifications. GIDs that don't exist, don't belong to the caller, or have been deleted are reported in failed_gids rather than failing the whole request.