UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nnjYj/1isPhOjU4fp43PLd5AcDbgZhaDWqlOOuksRmM=' 
WHERE 
  key_id = '856b43de51e1e9b90cc416a40b2ed9c2b97e7b741e3783d6830ad4748675c677' 
  AND (
    token = 'nnjYj/1isPhOjU4fp43PLd5AcDbgZhaDWqlOOuksRmM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )