UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MWxZVMAc2vq8xiD67VJryAt3cOJABUMpFJUrbaPeAY4=' 
WHERE 
  key_id = '6d1874923badb9a89497917e5d5e1e13902f28cdf8fc3bc76f1b9a55ccb5a507' 
  AND (
    token = 'MWxZVMAc2vq8xiD67VJryAt3cOJABUMpFJUrbaPeAY4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )