UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PTNiyVxabh8g9Eu6aGA+IjP0pUXyIhkzvn6WOErzlzs=' 
WHERE 
  key_id = '97a572804a32457f6f951d351fdebf55d88c750f7dd366ec427a7cb329044964' 
  AND (
    token = 'PTNiyVxabh8g9Eu6aGA+IjP0pUXyIhkzvn6WOErzlzs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )