Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHhpT0M/7pBo6rROfz5NlB6zkXFfXHP4xwkwfU3vRg5v0qlbpZx7XslYssC… (844 chars)"
  }
}