protected function deleteUserCascade(int $userId)
{
$this->db->delete('airship_auth_tokens', ['userid' => $userId]);
$this->db->delete('airship_user_preferences', ['userid' => $userId]);
$this->db->delete('airship_user_recovery', ['userid' => $userId]);
$this->db->delete('bridge_announcements_dismiss', ['userid' => $userId]);
}