Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE9dUE2JdKvXyqFoxV2XB5iNUzxZDgyDt5CSFPH6jMP0XxjfRTgW7lIsj9/… (844 chars)"
  }
}