Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEpFyB2YXjnAz2b3Kq8AIO7G7N3oGdcbCA/tdbAyc4aqU+NdPu5Ru/Wf1CQ… (844 chars)"
  }
}