Here are the values I’ve managed to decode:
259: "netstate"
260: "netchan"
261: "netrssi"
264: "netserv"
305: "nettype"
266: "powerin"
267: "boardtemp"
270: "uptime"
283: "netbytesent"
284: "netbyterecv"
301: "netip"
302: "sysresets"
Alas the status updates stopped working after upgrading to the latest firmware…