Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDsBpMvTBe8p2TYnJpGD2Ec/YHQwNpM3jC5yxkZW3Zstztn+i84tnHqNx2f… (844 chars)"
  }
}