Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE6o9kkFzh5+TwIXhJqZSyLJe/W3z9Ri5PbrfIsqk0jF0YHuJVuxKCYjuaA… (844 chars)"
  }
}