Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG+c1/MZovXFeDDrWXg5FhDpDcPQge65XDq9zmS5HWyNhxoHnMr2xD+iCiA… (844 chars)"
  }
}