{
    "$ref": "InstancePayload.json",
    "nova_object.data":{
        "audit_period": {"$ref": "AuditPeriodPayload.json#"},
        "bandwidth": [
            {"$ref": "BandwidthPayload.json#"}
        ]
    },
    "nova_object.name":"InstanceExistsPayload",
    "nova_object.namespace":"nova",
    "nova_object.version":"1.1"
}