{
  "manageEntity": {
    "action": "Save",
    "entityId": "2024219322",
    "entityType": "Track",
    "nonce": "0x8df8de4732bf2c7e1aecf20378f1e017f8101d92dcf2f457c246a3dad35936df",
    "signature": "0xcc4d3e90047cfcd8b181814ef85a3a26e64c4d9013b9730daa4b72c8124a2be000e3ae63319dedb018f1d444771502a44a19519da6216f071d0b84b4908d8a931b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}