Documentation specifies 'nodeId' but 'nodeid' is what works.

[NodeGuy]

There appears to be a minor typo in the documentation:

msg.payload.nodeId: (REQUIRED for all topics) zwave node to send the command (eg. 2)

msg.payload.nodeId doesn't work for me but msg.payload.nodeid does.

Either that or the documentation is correct and the code should be rewritten to match it. :-)