curl --request POST \
  --url https://api-sandbox.orum.io/deliver/external/accounts \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Orum-Version: <orum-version>' \
  --data '{
  "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>",
  "metadata": {}
}'

{
  "external_account": {
    "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": {}
  }
}