Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHsBJJhOdKelqEGzHcF2nG+mZtCxJZeXmx4fsclJmS9CzT5jJlIV5p2n7f2… (844 chars)"
  }
}