Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBQIV5KuIXoaOy0oz/hmXcFaHaTRcTECj4GR7C2OYBs8XM3X3efDo4X6tPp… (844 chars)"
  }
}