Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC+MnB94zLNMTOUsmdVpB8Y4LdEE9fqCdZMIkwnuJrmLhSoI9iYNYlY93v+… (1,748 chars)"
  }
}