curl --request GET \
  --url http://localhost:8080/sponsors/{sponsor_id}/transactions

{
  "limit": 123,
  "offset": 123,
  "total": 123,
  "transactions": [
    {
      "account_id": "<string>",
      "amount": {
        "value": 123
      },
      "created_at": "<string>",
      "direction": "<string>",
      "id": "<string>",
      "status": "<string>",
      "transaction_type": "<string>",
      "correlation_id": "<string>",
      "description": "<string>",
      "funding_type": "<string>",
      "gateway_ref": "<string>"
    }
  ]
}