Download URLs for Central tenants

Hello,

Between this: https://developer.sophos.com/docs/endpoint-v1/1/routes/downloads/get

and this: https://developer.sophos.com/getting-started

I got as far as trying to submit a 'curl' command to get the downloadURL value for a given tenant. I wouldn't even be bothering but the thin-installer deployment page makes a prominent note of saying "hey, use the API instead" without actually giving a concrete example of HOW to use the API.

But my results are...

{
  "tenant": {
    "id": "ID REDACTED"
  },
  "licensedProducts": [],
  "installers": []
}

Not helpful. What am I missing?

Thanks,

- KPK