So I logged a packet whenever trying to buy an item (Sha-Skin Hood - Item - World of Warcraft) It costs 1Helm of the Shadowy Conqueror - Item - World of Warcraft. I converted the ID of the sha skin helm to hex, flipped it and found it in the packet (94 54 01).
The packet looks like:
76 DA 03 1C FF 00 00 00 94 54 01 00 01 00 00 00
4A 01 00 00 52 6A 40 08 A6 5F D5 31 FD F0
I don't know which ones are the ones that tell it if I had the token or not. The way I can test it is buying the token from dalaran with JP and log it when I buy something with it and see which ones change. I will edit it once I do it.
Edit: I bought http://www.wowhead.com/item=40613 with JP, and logged the packet when buying http://www.wowhead.com/item=39500/he...ueheart-gloves.
The packet looked like this, with 4C 9A as the ID:
5F 19 8B 77 FF 00 00 00 4C 9A 00 00 01 00 00 00
37 00 00 00 52 6A 40 00 F3 42 8F 31 70 F0
I noticed a few numbers changed, I will mess around with a filter.