Update: Admin Permissions for Sub-Account Users
Master Account user will now be able to grant greater scope of permissions to Sub-Account users. Meaning the Administrator rights.
This will allow you to grant permissions to someone else. This way, you will not be required to intervene, when the administrator permissions are required, while in fact, it is another user that handles your DateFeedWatch-related matters.
On the other hand, they will also have such rights, as to resign from the service, or change the plans and payment options. They can also grant such permissions to other users.
So make sure the Sub-Account user is trustworthy. And please note that their decisions will have equal power to yours.