{
  "manageEntity": {
    "action": "Save",
    "entityId": "1283583595",
    "entityType": "Track",
    "nonce": "0x3e38f0e0a9c248bf711c7f8e259174e25271422b198f94d9f63e361c5e8c18ce",
    "signature": "0x40b0155ee0c238f424483ef7a4223443c611db96c2236f711de65cab24d15c3341599d20757420fa8071e7aabbd18a6890568cd5153926fbf807b67cb74dd0671b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}