{
  "manageEntity": {
    "action": "Save",
    "entityId": "1101956",
    "entityType": "Track",
    "nonce": "0xe81b65b16c0a55c57e8a2b5359db42f8859923783b909107e0963a342be669fa",
    "signature": "0xe9e218114c7c20cda9fa361e98519916ce872bf77c06f99b97fc92919656377f6dc44e634c0f368a62b859f865552da90eb921633b28a2f19a300fa623ba909c1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}