{
"manageEntity": {
"action": "Save",
"entityId": "1705444069",
"entityType": "Track",
"nonce": "0x8742f49a8a7d29d492582bd292b57957e34a69f1ba7fea535a9d26381d3cb04d",
"signature": "0x9efc793cf80d1ba5c98f71e5e697f5930c925c66883942f0a789f45274a40c743737bcea2e5478153e1e2efa2f7824e827bcc2973f5924d7d2efff12dc79c60b1b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}