Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE5qHXsZZJh2fl4b2dgeS4bvM1/edmCg3lZcYyQjiSBZgZTNfSIAd7zxSqm… (844 chars)"
  }
}