Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFrQLM+KZSq56tJ3kjG0Th1It8l3LYK+b1mxM7/KQhXwgSZ6RxX9V6wD4ZX… (844 chars)"
  }
}