Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGYnDMk/U2J6qAx3s1PVVYyfBG5Ul8P0EU9I7bO/os4UgAKvFBbF+X9izGr… (844 chars)"
  }
}