{
"manageEntity": {
"action": "Save",
"entityId": "930136222",
"entityType": "Track",
"nonce": "1792508829247983478",
"signature": "0x707e2b09962ab9bd4a44a9be7f975d065b86fb187a442d4e950d545e04644edb5f981178e8e68580a0fe0800277a269e66a3bd4c4bb0da7cce743b16ddc6b0521b",
"signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
"userId": "568518925"
}
}