Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDnSsOcNCNkjRWbfzCrYa4VVKR/tg6bE7xlvE/tBR1Lxl4Ab3z/aH6OjVDe… (844 chars)"
  }
}