Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH9sU6Yt6qer/8PDEb7l5HvNtbSjVKcHleInFSLkIdhWk/lu6UbJd/I5BQx… (844 chars)"
  }
}