Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA5upMQWUCL1qg2gUIoTQG+d5kM8dYZi9X/yCQE4PxIBn9Qqw6GCn/mZBCn… (844 chars)"
  }
}