{
    "id": "idle",
    "track": "upper",
    "duration": 2.0,
    "loop": true,
    "keyframes": [
        { "t": 0.0, "body": {"angle":  0}, "head": {"angle":  0} },
        { "t": 1.0, "body": {"angle":  2}, "head": {"angle": -1} },
        { "t": 2.0, "body": {"angle":  0}, "head": {"angle":  0} }
    ]
}