UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NE4i8Nx7RdDnC8ZXEzMtaxbDoXdKuKdhNjAsLvWCHYI=' 
WHERE 
  key_id = '42aee48bfb3fe13c1068765e95993daf6d317bfb4b022cf842f2af9ab8b71c56' 
  AND (
    token = 'NE4i8Nx7RdDnC8ZXEzMtaxbDoXdKuKdhNjAsLvWCHYI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )