I tried to take info from serv but its all confuse, look:
It should be like it:

1 version (4-byte , in hex)
2 IP
3 port
4 master version (1-byte, in hex)
Aeva Serv info:

1 version (4-byte , in hex) - (dont know where is it? if i convert 4FBF1E00 HEX-DEC it will be: 11337925120, i dont understand that.)
2 IP (OK)
3 port (OK)
4 master version (1-byte, in hex) - (so it will be 1???)