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

{
    "firewall_group": {
        "admin_state_up": false,
        "egress_firewall_policy_id": "14c9d3c1-b472-44f9-8226-30dc4ffd454c",
        "ingress_firewall_policy_id": "c69933c1-b472-44f9-8226-30dc4ffd454c"
    }
}