{
"manageEntity": {
"action": "Save",
"entityId": "163399",
"entityType": "Track",
"nonce": "0x8205b3948a38c9a103c0e4b9f3c380543873d6975b6cbfb97db16ba79519da2d",
"signature": "0x620d982e812126fe1444314fbe81255e5e5bdec204ff151e9cb8bac1fafa8e110362252ee4bffca77c85dcec4bae247d1183065424984b9b9598101a43baf62f1b",
"signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
"userId": "167557"
}
}