UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kaX6///LbIICHlat1ooJIu6Ww7ObMh8TQ8dsPkUZ5Ak=' 
WHERE 
  key_id = '4b5eca5ef95f85fd26324cd37f5d07583fdae9f4df8620ee34982e85963e3455' 
  AND (
    token = 'kaX6///LbIICHlat1ooJIu6Ww7ObMh8TQ8dsPkUZ5Ak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )