Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF4/1QcnNwh5iZNk7kGwFwF6jxmfGc/kMrPVy/wP4MUMHS0XHo6pn2ViLhu… (844 chars)"
  }
}