Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGzGdrDMYHqPBx7DgBF+AWybl99sYkYQWH4rjA4E6Zl1mi6M6a3jbvvLacY… (844 chars)"
  }
}