{
  "/19968336/header-bid-tag-0": [
    {
      "hb_bidder": [
        "appnexus"
      ]
    },
    {
      "hb_adid": [
        "233bcbee889d46d"
      ]
    },
    {
      "hb_pb": [
        "10.00"
      ]
    },
    {
      "hb_size": [
        "300x250"
      ]
    },
    {
      "foobar": [
        "300x250"
      ]
    }
  ]
}