Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA6/GYACxSqqT6Fe8CUtNhzSt1F52xWbXpfx4cNHqHf+2YzcQMtt0yGHrG+… (1,748 chars)"
  }
}