Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH38qPNaVSp2GFh/mMcJQFeNMc5BQ4cXb2J1Z+ZTDwRJSGD9dge9WzvsxTo… (844 chars)"
  }
}