{
"manageEntity": {
"action": "Save",
"entityId": "12070176",
"entityType": "Track",
"nonce": "0x7fafc7dacfdda9990d25d32ecfeba0ce71a6d7e69b1107bc931ee158ebe4266b",
"signature": "0x93a2d7d01c64c06919e745f91f8d5794b1d7ed9093d236cd88599af6e549ef8f015b4c8ae6aee4becd73d52d4dd881183a3ec7e10f09e426ec34e5c49e33eb051c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}