curl --request POST \
  --url https://api.ubicloud.com/project/{project_id}/location/{location}/private-subnet/{private_subnet_reference}/connect \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "connected-subnet-id": "<string>"
}'

{
  "firewalls": [
    {
      "description": "<string>",
      "firewall_rules": [
        {
          "cidr": "<string>",
          "id": "fraz0q3vbrpa7pkg7zbmah9csn",
          "port_range": "<string>"
        }
      ],
      "id": "fwfg7td83em22qfw9pq5xyfqb7",
      "location": "<string>",
      "name": "<string>"
    }
  ],
  "id": "ps3dngttwvje2kmr2sn8x12x4r",
  "location": "<string>",
  "name": "<string>",
  "net4": "<string>",
  "net6": "<string>",
  "nics": [
    {
      "id": "<string>",
      "name": "<string>",
      "private_ipv4": "127.0.0.1",
      "private_ipv6": "2606:4700:3108::ac42:2835",
      "vm_name": "<string>"
    }
  ],
  "state": "<string>"
}