UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lxVuZlOz9pLaB2ydcGftzlohrNsi4wcI+jsDLafkhc0=' 
WHERE 
  key_id = '101dfb876ff71091da5e7b8986d46494d8e75fb5ea7071a4e0158bd0c2eb0c4c' 
  AND (
    token = 'lxVuZlOz9pLaB2ydcGftzlohrNsi4wcI+jsDLafkhc0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )