{
  "manageEntity": {
    "action": "Save",
    "entityId": "1060695759",
    "entityType": "Track",
    "nonce": "0x3d9faa947d28a859b649e4dffcafea2221ad5d9e19f8f57aacbd1ff7b8e88079",
    "signature": "0xe1dfc3f306e631313668d6bafb6fb9922cba78f11837c59b2f54cf695e27772f7e2ea0432d608bd57fe0794510c59b62185618b87b3cde21feab11592f358de11c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}