Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH/N7ia1JMXU6Fyz3oPnS+Du6k6T8uHI474fTGGML5r4hIq9p/JKBA3vz3x… (844 chars)"
  }
}