Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGcCmzUCg61h/wBb+k6YAghxqEH5IpvZcQ9pyQOPefF13Ru/C4xJOp/QVtY… (844 chars)"
  }
}