/**
  * Add a subscription listener for a specific account
  *
  * @global BC_Accounts $bc_accounts
  *
  * @param string $account_hash
  */
 public static function create_subscription($account_hash)
 {
     global $bc_accounts;
     // Set up the account to which we're pushing data
     $account = $bc_accounts->set_current_account($account_hash);
     if (false === $account) {
         // Account was invalid, fail
         // Restore our global, default account
         $bc_accounts->restore_default_account();
         return;
     }
     // We're in a static method, so instantiate the API we need
     $cms_api = new BC_CMS_API();
     foreach (self::callback_paths() as $path) {
         // Subscribe to allthethings
         $subscription_id = $cms_api->create_subscription($path, array('video-change'));
         if (false !== $subscription_id) {
             add_option('bc_sub_' . $account_hash, $subscription_id, '', 'no');
         }
     }
     // Restore our global, default account
     $bc_accounts->restore_default_account();
 }