Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH3W3xIS0U4pPZIIZW+CrEpK/QKH+EawvLBewh0pFgTkHlLn4DOAIlp0Jzp… (844 chars)"
  }
}