public function sendSubscribeRequest($attributes)
    {
        $token = isset($attributes['access_token']) ? $attributes['access_token'] : $this->getAccessToken();
        
        $page_id = $attributes['page_id'];
        $end_point = $this->getResource() . '/' . $page_id . '/subscribed_apps?access_token=' . $token;

        return giga_remote_post($end_point, [
            'subscribed_fields' => $attributes['subscribed_fields']
        ]);
    }