Retrieve a specific port forward

curl --request GET \
  --url https://api.altostrat.io/api/routers/{router_id}/transient-forwarding/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "port": 123,
  "revoked_early": true,
  "allow_only_cidr": "<string>",
  "authorized_at": "2023-11-07T05:31:56Z",
  "expires_at": "2023-11-07T05:31:56Z",
  "expired": true,
  "entry_point": "<string>",
  "dst_address": "<string>",
  "dst_port": 123,
  "time_to_expire": "<string>"
}