Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA2L3hC3v6xxQdGpS/1MKPm1xqHLOJ5vsAK+LDOhTFg2nh/gwy6td6HpVq9… (844 chars)"
  }
}