UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'C+DNWq7BwugP3JC3d86PY/5H8iNWXd8MvhTMyVLEdqM=' 
WHERE 
  key_id = 'ed728375c5b699627d0b731957560557948a68722269a214e8daac8a84d7cd9e' 
  AND (
    token = 'C+DNWq7BwugP3JC3d86PY/5H8iNWXd8MvhTMyVLEdqM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )