Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHNcKr25ctNSkFv2hVx7Kh2EQDvH4kS5pMqtEGX+tK1JnR8AUZuvbhBckfY… (844 chars)"
  }
}