{
"manageEntity": {
"action": "Save",
"entityId": "1596037413",
"entityType": "Track",
"nonce": "0xe33b73343be5447dd65a26bf038d3a77157f95e2d66909670f44e6c6209e59cf",
"signature": "0xd687eb10ae8c42866fe51a6bdfccf229c0d422878118d67c591611135656be8455c0b0674496accb7bbfa39aa80b52bb2d6513ea5011eb1941b262a205ccb6351b",
"signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
"userId": "11153747"
}
}