Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGkGh6kqT3KGc7hgenNcjatjrXiL8KzKFcSXI0Xav3CPxNqHwb6KZHrYVp+… (844 chars)"
  }
}