+ $token = $this->trimmed('token');
+
+ if (!$token || $token != common_session_token()) {
+ $this->client_error(_('There was a problem with your session token. Try again, please.'));
+ return;
+ }
+
+ $other_nickname = $this->arg('unsubscribeto');
+ $result=subs_unsubscribe_user($user,$other_nickname);
+ if($result!=true) {
+ common_user_error($result);