UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xbEkXCLKycw2y9LgTJMKnc4VrdcNbMJYF9zqLvwL/WI=' 
WHERE 
  key_id = '86750ccbf5377b7d0fc002896310ec60757e2de6b28d1e2782116f5ce7481e5f' 
  AND (
    token = 'xbEkXCLKycw2y9LgTJMKnc4VrdcNbMJYF9zqLvwL/WI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )