UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gCnK/JbY527P+0L75yeaSRZTJ06JnOSXUC0OTyLZeng=' 
WHERE 
  key_id = '970c4be5f3f4fe7b201e7a542edcde2238d9577507e1b6f9b2cbde27a10ddd46' 
  AND (
    token = 'gCnK/JbY527P+0L75yeaSRZTJ06JnOSXUC0OTyLZeng=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )