{
  "manageEntity": {
    "action": "Save",
    "entityId": "1082781",
    "entityType": "Track",
    "nonce": "0xd9d40fb0438ab101ed50fe7f5a7e622c3d7a047618d0c0289e870c6cda3b3f45",
    "signature": "0x3c4c123e6cbc8742f940a50300259e46fbddb1d245135e4b7a1f826b442565995de34b6a543b9c0442befabf9beaebaa38b1c905487e297d7d20cb1c45d417a31b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}