curl --request GET \
  --url https://api-sandbox.orum.io/deliver/external/accounts \
  --header 'Authorization: Bearer <token>' \
  --header 'Orum-Version: <orum-version>'

{
  "external_accounts": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "account_reference_id": "<string>",
      "customer_reference_id": "<string>",
      "customer_resource_type": "business",
      "account_type": "checking",
      "account_number": "<string>",
      "routing_number": "<string>",
      "account_holder_name": "<string>",
      "status": "created",
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "closed_at": "2023-11-07T05:31:56Z",
      "metadata": {}
    }
  ]
}