UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UCn6stZd5OVQGgrGc71KORkuvBW+aivBksnCsp2VAqQ=' 
WHERE 
  key_id = 'da6bcfd1cf5919dd5d70f948ca6fcdc5b22359216da4a886893a2803b16581a7' 
  AND (
    token = 'UCn6stZd5OVQGgrGc71KORkuvBW+aivBksnCsp2VAqQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )