UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6DNPq2wzldVvVX2Svb5n9tu11OsNUspj7C4KRiACc7Y=' 
WHERE 
  key_id = '4e68d85562ebebd2b6d7b3345d7f572001a40f1b7c57b801a43f4d7209bde91a' 
  AND (
    token = '6DNPq2wzldVvVX2Svb5n9tu11OsNUspj7C4KRiACc7Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )