{
"manageEntity": {
"action": "Save",
"entityId": "1882577238",
"entityType": "Track",
"nonce": "0x1f2a99e427fd58abf5bb0af74703f415a7641c0fc95c7329a63fa49979ce6f70",
"signature": "0xb51548af4a8eadd2eaa7f9fa09bdc6b730e8b138d372f994a4135758bd29923d37608f558f8f698f86874beb3b8ba895a8f992f7787b0f77c2b94a7f519ff71a1b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}