UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UDH+APK8KOSJDGcDTx5xg1NvqEKka6+/oMMCsrdzatM=' 
WHERE 
  key_id = '50ad7907486120866a0c995ecdec772c98590c9d7d8dda36ac711f054bbd0d92' 
  AND (
    token = 'UDH+APK8KOSJDGcDTx5xg1NvqEKka6+/oMMCsrdzatM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )