Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHS+Vdod8FyiOFZxHK/3vB9piA9OpmvJV3+yhdLLq8jxlcy8gJQxE7YxHfv… (844 chars)"
  }
}