UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6SJl0IIxHwiyFJrgpbPYfKLpRDViuMD66nSzU65QBdY=' 
WHERE 
  key_id = '55c1b59fa9beece64a0b7d6b2552db63d7c3e8a1c9b83318834022b82c3b721c' 
  AND (
    token = '6SJl0IIxHwiyFJrgpbPYfKLpRDViuMD66nSzU65QBdY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )