Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwIXNt9/XHqyXfBpgJj1O+w0Bx2EL7uOu0+Kw34EVeKCZyCaHTo3RWwKI1DC… (844 chars)"
  }
}