Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHIfPJL5+OBt4t7OYVnwAJOsksWu8nxWxF0HaEx5fGzqXmmT9z89Ur6XBZ9… (844 chars)"
  }
}