json.title notification.notification_type
json.description _t('.your_subscription_PLAN_has_been_extended_FREE_until_DATE_html',
                    {
                      PLAN: notification.attached_object.plan.base_name,
                      FREE: notification.get_meta_data(:free_days).to_s,
                      DATE: I18n.l(notification.attached_object.expired_at.to_date)
                    }) # messageFormat