Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFn8+Th2bWMggYZC/D4XMsTBUOxlzJlW6ET5Hxnm3xoSQJIlwYJYG5OoNGK… (844 chars)"
  }
}