neutron-lib/api-ref/source/v2/samples/firewall-v2/firewall-policy-create-request.json

{
    "firewall_policy": {
        "name": "test-policy",
        "firewall_rules": [
            "8722e0e0-9cc9-4490-9660-8c9a5732fbb0"
        ]
    }
}