Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCIpVyMX8Pms/cVCQc9gV7/y47UwKxRl34SKXBj5P515AHZWYwdGBrjsxuM… (844 chars)"
  }
}