{
  "manageEntity": {
    "action": "Save",
    "entityId": "1067047125",
    "entityType": "Track",
    "nonce": "0x6842543a5978c072c28f3e915dbc17bb769a75636de87318312f59c08012c815",
    "signature": "0x3f12f4f9a2a398ad75f0bb2d80daf8f5f94ffed7ac51636d35170439c82354bc0271c2f0eec5edcf37b6324f9072cbe5fd4d3a9ecf19f468058a05c2184fac961b",
    "signer": "0x36F7bb3C167871c723AC2134d4AaAeA284094714",
    "userId": "95466"
  }
}