Make sure to download the NanoflowCommons module. In this module you have javascript activities 'refresh object' and 'refresh entity'. You can call a nanoflow and trigger one of these activities, depending on what you need.
Refresh entity will refresh the whole entity in the client. Thus, will affect all objects of the entity which are present in the client. Refresh object will only refresh the targeted object. not affecting other objects of the same entity present in the client.