code: func (plugin *ExamplePlugin) watchChanges(x datasync.ProtoWatchResp) {
  	message := &ipsec.TunnelInterfaces{}
  	err := x.GetValue(message)
  	if err == nil {
  		plugin.Log.Infof("Got watch message %v", message)
  	}
  }
docs: // watchChanges is watching for changes in DB