{
"manageEntity": {
"action": "Save",
"entityId": "1324784821",
"entityType": "Track",
"nonce": "0x074118043b4e24ae6f9e127959d6366b77e8ccf4416548c0f47d13ecfb9f8459",
"signature": "0xac3deaefc77b6b374dfde9974defa37f6643d27405e89a2dc252f84283fc5363003265c62a0dd40f9159c30b125695637d4a63494e2836d150ac91c0eea3c8c61b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}