{
  "manageEntity": {
    "action": "Save",
    "entityId": "2036840726",
    "entityType": "Track",
    "nonce": "0x99113389f83fb2d3e323f437d69f41c38eeaf146990f19e98c8bac013251df90",
    "signature": "0x6a7e51f2aa86ad637d976f017f51e7780264f49beee283b575f9d84200a870d31d8e2a24e0a2b89921413a301cf655c3c5952582372c692ceceef08dc32a215c1b",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}