UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4kFoStyS/71cunDPzTPeJtH8mo6wRysXGtz9gXu8wYQ=' 
WHERE 
  key_id = '71d61b680534ac18986fbf97caa3850e9d2ceb23101d931069eefd0d187ca233' 
  AND (
    token = '4kFoStyS/71cunDPzTPeJtH8mo6wRysXGtz9gXu8wYQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )