Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwKUJQ7+hjNbYwYavLXk2xQXJ2D5cIgxgmCMofjkQGKCQEWZbm3T99yjBhMM… (844 chars)"
  }
}