{
  "manageEntity": {
    "action": "Save",
    "entityId": "1102126",
    "entityType": "Track",
    "nonce": "0x563b4fe11174917a05c060645663237afc2439886db3cefd143914ee83cf8214",
    "signature": "0xcf3c43684635a58f0251b2904b5857ffef3ba382af3ceff24020b5d32f7187bf0b257d0abe9ffcbc7cd5ef86276414cc9f004c85b856ea44f7030dcf0a6295221b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}