Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQCPXJkOcyo3hLRYDgweYnJp+X8CF3+/jR+wpFlNGFysUW7Zu0+7nlKBOUD+… (1,748 chars)"
  }
}