Path: /api/app/users/#{facebook_uid}/friends
or /api/app/users/#{email}/friends
Method: POST
Params: :uids, :emails, :user
Expected Response: {"data"=>{"tracked_friends_count" => "10"}
Path: /api/app/users/#{facebook_uid}/friends
or /api/app/users/#{email}/friends
Method: POST
Params: :uids, :emails, :user
Expected Response: {"data"=>{"tracked_friends_count" => "10"}