UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n27ZddCJzVbkB03bAA9o3eUvnSmrgfOgE0FUhn84CRU=' 
WHERE 
  key_id = '4821c5676aac031aea81b9b513e71fac14e9124074def4ccc943ce51762a3370' 
  AND (
    token = 'n27ZddCJzVbkB03bAA9o3eUvnSmrgfOgE0FUhn84CRU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )