...

{
   "downloadThroughput": float number,     -->   download speed in KBps (note: we use one decimal digit)
   "uploadThroughput": float number,       -->   upload speed in KBps (note: we use one decimal digit)
   "ipv4LocalPing": float number,          -->   IPv4 ping time in ms (note: we use one decimal digit) -1 if there was no IPv4 connectivity
   "ipv6LocalPing": float number,          -->   IPv6 ping time in ms (note: we use one decimal digit) -1 if there was no IPv6 connectivity

}

JSON message example (syntax to be verified)

...

[performance]
{
   "downloadThroughput": 4375.0,
   "uploadThroughput": 3912.5,
   "localPingipv4LocalPing": 4.7,
   "ipv6LocalPing": -1,
   "testTool": "wifiprobe"
}