UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'guGhExLtx6KLnP0Oal3GenCLQ4xx1J/iXmhPB85PnxA=' 
WHERE 
  key_id = '4d9d0a94726b409b7ad42b204a7a4752d92f232de25eb7bfb76038190525084d' 
  AND (
    token = 'guGhExLtx6KLnP0Oal3GenCLQ4xx1J/iXmhPB85PnxA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )