Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCJ5jKPTvhTwN3ScNkxF9lZFkyAdKZI8iZmGwMnT6nxPw3yGIOa+Zs7Vvs0… (844 chars)"
  }
}