Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQChEOmh0qYgXGXm5Zx/GWf5H7oyT8N+PW5aMqMV7gEhGHYojdscoG5kaxB+… (1,748 chars)"
  }
}