Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA6OCy3chzYR5+I7Qj/YWGUDgg6m4fX0E9cW7hMY83dTwCvna+R5GYoQMhf… (844 chars)"
  }
}