Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDJdxQBJ4/K0GPQI6H8/oeO7Sz3PsFuPVM7pJrAEioOqhfuApnL+M8/Hzd9… (844 chars)"
  }
}