Remove a square bracket and receiving JSON properly in nodejs/websocket enviroment?

At the moment I can only output data of a specific key (index) with console.log(auction[index].id); but I need the data using console.log(auction.id);. How do I accomplish this?

I'm using nodejs and my WebSocket receives data just like this:

42["stream",{"streamArray":[[{"id":20,"pid":2,"nr":4,"price":5.73,"pe":506.08,"duration":14,"hb":361262},{"id":23,"pid":17,"nr":4,"price":5.59,"pe":189.13,"duration":7,"hb":null},{"id":12,"pid":8,"nr":3,"price":5.59,"pe":90.23,"duration":7,"hb":null}]]}]

So it's a multidimensional array. And I think there's one square bracket too much? (Right before {"id":20 for example)

This way I receive the data client-side:

var socket = io.connect('http://localhost:8000/',{'forceNew':true });
socket.on('stream', function (data) {
$.each(data.streamArray,function(index,auction){    

Do I have to change the code before the data is even sent to my WebSocket or can I solve this issue client-side to receive the correct data in my variable auction? How could I solve this?