IBM messagehub-node

Can anyone has any example about what is the correct node to install and how to connect into IBM message hub (renamed by event stream) node to subscribe into a message ?

found both
@nickcis/node-red-contrib-messagehub-node (got an error when installing)
node-red-contrib-messagehub (included a new node called messagehub) *this one ask for a bluemix string - does anyone know the format of this connection string should be ?