UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hSgh46H0r7aBh2A2I6uVhhXVEe8DZiYc0zCNd/9iNJ8=' 
WHERE 
  key_id = '4ff0a476b970409b954546336c761ee78f614b114026fb402b439451e796fbe9' 
  AND (
    token = 'hSgh46H0r7aBh2A2I6uVhhXVEe8DZiYc0zCNd/9iNJ8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )