Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG3XejPG8uwyeQhuEi8y4wjKrJ40aTwmfAxbh6GY3nQjHp9cLAm6kTvZSrJ… (844 chars)"
  }
}