Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHlv3xI6RLDbSajfq7RzQLZS1tUoC8YuqgfGtai/EhFeBzxm8QQ8I6M2XRe… (844 chars)"
  }
}