{
  "manageEntity": {
    "action": "Save",
    "entityId": "1483758630",
    "entityType": "Track",
    "nonce": "0x31634fae32e10a7158eef549c77d23f95e2a817661d9484736fd66f66353859a",
    "signature": "0xc0df007613ad3a6fc868756577033b0adef2073439815f504e3d21c327667167002f488084543c017f7e6bdb9dca5e816a152f79841fc5f48a3057ab582b39dd1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}