UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Z6nuQISnLpJeNsr27itBJfbmoy1wbMz7u/kO3YkGcEY=' 
WHERE 
  key_id = '915c28f7b001c3145e6b6ae504d724977af44948e01d345704eb07d817e0f68c' 
  AND (
    token = 'Z6nuQISnLpJeNsr27itBJfbmoy1wbMz7u/kO3YkGcEY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )