Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBxFHL8rQh6cYc+SNuWd/wFplLvw+nOItcgoOQre+3x8kxCc9/xmkQ1Y4rJ… (1,748 chars)"
  }
}