Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBOVRE7z+bwAGmAnz7ZDK9n6rX8/Ht7nSXz79SHfTD9ryKfv6Eq9OGVy2M+… (1,748 chars)"
  }
}