Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHWTKhwSxW8rg5Ys/NGfEMLbgSdWnvpMyFJelcC8d2aLgxoiA14FQ6KZhdh… (844 chars)"
  }
}