Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA36VE4vv/gTqVZMVfvmD3n/EzL9EBpafcGuu6+sUU1xVDY7nK4mS6Bc8CX… (1,748 chars)"
  }
}