curl --request POST \
  --url https://api.sandbox.teal.dev/v0/sources/unit \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'teal-instance-id: <teal-instance-id>' \
  --data '{
  "ledger_id": "<string>",
  "unit_account_id": "<string>"
}'

{
  "id": "UjL3BQnEaJtecuC7CUeDk",
  "status": "pending",
  "created_datetime": "2024-01-01T00:00:00Z",
  "updated_datetime": "2024-01-01T00:00:00Z",
  "error": null,
  "source_account_id": "<string>",
  "ledger_id": "7JRNsKwy2Lw66caxVU7WGC",
  "created_transaction_ids": [
    "<string>"
  ],
  "removed_transaction_ids": [
    "<string>"
  ],
  "modified_transaction_ids": [
    "<string>"
  ],
  "skipped_transaction_ids": [
    "<string>"
  ]
}