UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4gj7qFCu4XNBteMlDBSQeFNxch/rVzFiJpsgM+E8MNU=' 
WHERE 
  key_id = '704ff6f917e3d5ec03878508e1dc1798ce60b4339c74e86a1916a49a02d0b784' 
  AND (
    token = '4gj7qFCu4XNBteMlDBSQeFNxch/rVzFiJpsgM+E8MNU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )