Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD3f1C2L6lVCZ8RoTiwwxFQO3XK4RzJ8B5U8XEGxBlBdC1g9QffX6O+kgbk… (844 chars)"
  }
}