Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA9DvM48TbN+9L3bFMW1NJvGI1xWAoes8dyBDnWnNZIR0sJLSvFLjFSX5cD… (844 chars)"
  }
}