UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RT5fe2B4VgUzZGeKOs6KQxqdZbKc0joZmSGcFc88Ug0=' 
WHERE 
  key_id = '6af1a7afc51f9dd8bc7089145f3de14e7de5b20983c2c149f8a4fd48eca3f181' 
  AND (
    token = 'RT5fe2B4VgUzZGeKOs6KQxqdZbKc0joZmSGcFc88Ug0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )