curl --request POST \
  --url https://api-sandbox.orum.io/deliver/transfer-groups \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Orum-Version: <orum-version>' \
  --data '
{
  "transfer_group_reference_id": "<string>",
  "source": {
    "account_reference_id": "<string>",
    "customer_reference_id": "<string>"
  },
  "destination": {
    "account_reference_id": "<string>",
    "customer_reference_id": "<string>"
  }
}
'

{
  "transfer_group": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "transfer_group_reference_id": "<string>",
    "source": {
      "account_reference_id": "<string>",
      "customer_reference_id": "<string>"
    },
    "destination": {
      "account_reference_id": "<string>",
      "customer_reference_id": "<string>"
    }
  }
}