nova/doc/api_samples/os-aggregates/aggregates-list-get-resp.json

{
    "aggregates": [
        {
            "availability_zone": "nova",
            "created_at": "2012-11-16T06:22:23.361359",
            "deleted": false,
            "deleted_at": null,
            "hosts": [],
            "id": 1,
            "metadata": {
                "availability_zone": "nova"
            },
            "name": "name",
            "updated_at": null
        }
    ]
}