curl --request GET \
  --url https://api.anchorage-staging.com/v2/onboarding/subaccounts \
  --header 'Api-Access-Key: <api-key>'

{
  "data": [
    {
      "externalId": "<string>",
      "status": "<string>",
      "subaccountId": "<string>",
      "name": "<string>"
    }
  ],
  "page": {
    "next": "<next page url>"
  }
}