Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHc1mqUL5P/U1LFoN3yN6JghEZWXKgyM0NvlHarUz3+vC5TQFArJuPKDRF9… (844 chars)"
  }
}