Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwABWXdFBK6hL5XEzQ+7zy4k6YNI3zL07yBBxYRt7g1ejUDA67iFDhfjbYNe… (844 chars)"
  }
}