Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF+IO1eELM8jAWiQolDMK7/b+O8+s3jDc1mIgEuAtkuCUFccbFvAGm3xZ88… (844 chars)"
  }
}