curl --request GET \
  --url https://{host}/subscriptions/{platformType}/{subscriptionRef}

{
  "subscription": {
    "name": "Sample Subscription",
    "description": "A subscription for testing",
    "created": "Mon Jan 19 13:52:31 EST 2020",
    "createdBy": "saas",
    "updated": "Mon Jan 20 14:32:38 EST 2020",
    "updatedBy": "SaaSadmin",
    "lastRefreshed": "Mon Jan 20 01:32:59 EST 2020",
    "owner": "saas"
  },
  "count": 452,
  "results": [
    {
      "currentType": "standard_d2",
      "name": "st01-prepro-edge-307",
      "recommendationType": "Modernize - Optimal Family",
      "savingsEstimate": "43.850475",
      "serviceType": "Virtual Machine",
      "divider": "------------------------",
      "Availability Zone": "eastus+group"
    }
  ]
}