Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGi6S3qfSG+5B1UgfVVO9KsgKneJPBtXQ0qBJ1MjKdNnjZOu3tFjuAp0/1F… (844 chars)"
  }
}