Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE6E7ZyEj8zCtHWcy4MtcGx+IM1eMJD5gJTgXrHOH94XHOGWw6Z/lB+KD/Z… (844 chars)"
  }
}