nova/doc/api_samples/os-floating-ip-dns/floating-ip-dns-entry-list-resp.json

{
    "dns_entries": [
        {
            "domain": "domain1.example.org",
            "id": null,
            "ip": "192.168.1.1",
            "name": "instance1",
            "type": null
        }
    ]
}