UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OK6j79Hy7cynftPVvRuijC/C1N04fZsuO7U8Wgj9bHU=' 
WHERE 
  key_id = '1f7a797d18804e3712be806d876be8ee3501659382ae61930eaca9a235d47656' 
  AND (
    token = 'OK6j79Hy7cynftPVvRuijC/C1N04fZsuO7U8Wgj9bHU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )