Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG0JW9f0E4hl87+gBy/cMQ23+WUrrJMgPmyq57iVUq1nSgN3LBfqZQP8Mzx… (844 chars)"
  }
}