curl --request GET \
  --url https://api.rivermarkets.com/v1/subaccounts/{subaccount_id} \
  --header 'x-api-key: <api-key>'

{
  "subaccount_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "<string>",
  "is_active": true,
  "inserted_at": "2023-11-07T05:31:56Z",
  "description": "<string>"
}