/**
  * Register an action on the post. You must provide an oauth_token with this method.
  * @param int $id The ID of the post.
  * @param string $action_id The ID of the action.
  * @param string $oauth_token The OAuth token provided from a user accreditation.
  * @return array
  */
 public function do_action($id, $action_id, $oauth_token)
 {
     // Fetch response
     $response = $this->master->_request($this->resource . "/" . $id . "/" . $action_id . "?oauth_token=" . $oauth_token, NULL, OHC_API_METHOD_POST);
     // Throw an error if there is an error
     if ($response["success"] == FALSE) {
         throw new Exception($response["error"]);
         return FALSE;
     }
     // Return response data
     return $response["data"];
 }