Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBFKRzfmJz10a1RMsVwfH+ONhclqRxc4tJhcHZYmNCGZD+PUzmfuF0UW/vk… (844 chars)"
  }
}