{
    "devices":[
        {
          "name": "tracking_reference_0",
          "type": "Tracking Reference",
          "serial":"LHB-02F97E98"
        },
        {
          "name": "tracking_reference_1",
          "type": "Tracking Reference",
          "serial":"LHB-431A55FD"
        },
        {
          "name": "tracker_0",
          "type": "Tracker",
          "serial":"LHR-3CD1A9DA"
        },
        {
          "name": "tracker_1",
          "type": "Tracker",
          "serial":"LHR-25865D81"
        },
        {
          "name": "tracker_2",
          "type": "Tracker",
          "serial":"LHR-4359D2B6"
        }
    ]
}