Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBOYjD+OpBUOYJvh5ljg63wSn6wBTXU2B/fQJPl+yvnOGasG7jTR8QyVXpM… (844 chars)"
  }
}