{
  "manageEntity": {
    "action": "Save",
    "entityId": "1220202084",
    "entityType": "Track",
    "nonce": "0xb88ede8227267d42cfd3747cc076b2c2db8e0d59b9837e35192715880604da70",
    "signature": "0x091c8284d0093c672b76ef3aa773007c955b921e0067658aca3cb91020a1a6a923cda96026f43bd458e97a00175bba4922064c3ce5d97332558745f960d5727a1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}