Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBWFPnCLj2lL87m14jB1JX/fo8Vm3vhuMkGx1bM0QTXhld8AvXMEo4HYXn/… (844 chars)"
  }
}