Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD0rPKsLpCR8EzUmDujSI/PmbrqoADKAzQkP1I8xZb6A0WbXIYt7OJSzxqW… (844 chars)"
  }
}