Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDJKlVRXW+BB4ypEhWe5iT/8lR0xxTu0y4zMVKgv8u7iRN9X4rlw/8dmtzm… (844 chars)"
  }
}