sender - The sender's RealID name. (i.e 'John Doe') or sometimes your own wow characters name. (looks like it will use the wow-character name when you are chatting, but will contain realid when other clients send messages) (string)
unknown - unknown (string)
unknown - unknown (string)
unknown - unknown (string)
unknown - unknown (string)
unknown - unknown (number)
unknown - unknown (number)
unknown - unknown (string)
unknown - This variable has an unkown purpose although it always seems to be 0. (number)
counter - This variable appears to be sequential number that the client recieves. (number)
unknown - unknown (string)
presenceID - presenceID of the sender (number, presenceID)