Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEgwcN2o9cgkeAGHVdSn37x+C5un/Dsp2+3WQ8tTgzUgACHHZJls8JH4EtW… (1,748 chars)"
  }
}