UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6GVW0mROVVvlcAAr7Y4yallPn0w9rlGMjUqwyxneB6Y=' 
WHERE 
  key_id = '15b0e29ca63d59cc5d162e63ac102315993180d7a07af54f136aea23bd85f115' 
  AND (
    token = '6GVW0mROVVvlcAAr7Y4yallPn0w9rlGMjUqwyxneB6Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )