Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCZVVg92kR3zsmlO4Sk/1xv2gfgneQwyJDKrplM8W5mN3X6wfck1JF9JXZC… (1,748 chars)"
  }
}