{
"manageEntity": {
"action": "Save",
"entityId": "1182385694",
"entityType": "Track",
"nonce": "0x03887ea977034d9de1e010e07200c108c19a33ec2ea5c99b932b71510b7a34ac",
"signature": "0x9247b51541c4c38edf63aa65aadc17959380004e977463e4541a1b9690b13835721c358ca41a8dd686b5de6d193f226c0c3293cfb00fed321e8e9b5e508810151b",
"signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
"userId": "489026160"
}
}