UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0pVBrGjIdq7JCf/c6JbPKTiGaA4z9h1iJeGFEB5EW1o=' 
WHERE 
  key_id = '4d4db5cbe90c65132b687dcd02c643ec1fb2c21e34eb24348306143db4c1f4bc' 
  AND (
    token = '0pVBrGjIdq7JCf/c6JbPKTiGaA4z9h1iJeGFEB5EW1o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )