{
  "manageEntity": {
    "action": "Save",
    "entityId": "2006112572",
    "entityType": "Track",
    "nonce": "0x272ca1d934ecd2581582523b1018cf81ebea776c9d50e7c827065a320defa4e4",
    "signature": "0xabdc18decbc69f79672bb891f9ba6620a32e9e98393a2fdcc50f42a6f9fe012d628e4079189dff469a2677f75cc2261bae0687a7a84070d3e1e1f3cfc93f7f9d1c",
    "signer": "0x53d8e61f7BdCd69E26B5AAe8F197464091224DB4",
    "userId": "99786"
  }
}