{
  "manageEntity": {
    "action": "Save",
    "entityId": "1719771983",
    "entityType": "Track",
    "nonce": "0x44224a2596ef57bc3f9b11ac59a3b5aef6eae3aa81bfdbef5811b336c3dd1962",
    "signature": "0x333482a0524f48efab9397889e22bdbe225f040981b39fb89a033000d8aecbf422d51d0b4bd083288cd69a8735d741d1530de75612b4d44aed91fdddd5dbaccd1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}