Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBGjs+KP9K7YKcwZkbOHePg33Ll+hf5YPpy5+nfTRWt7gV24bkGjSE4SU9Z… (844 chars)"
  }
}