Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwIPNM2tXhbI7JejsJjgfyEZ8/cQPe5aIprFG5WxIF/bvD8LxJ4UdYm5wzZw… (844 chars)"
  }
}