Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGZrpJqZ3QjjcqHruJfCv7iutfDiJuvQmRkKyL56xdcogz6N1ZfxvgzA/Hx… (844 chars)"
  }
}