UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0/kWylN/qHE4RzRbuq8XysiTVWvJYnO5Lke2nlffA+E=' 
WHERE 
  key_id = '4fec65cdc3d5877092e330114bee4ff52f484390a4137bb211961ecc89d3ac0a' 
  AND (
    token = '0/kWylN/qHE4RzRbuq8XysiTVWvJYnO5Lke2nlffA+E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )