{
  "manageEntity": {
    "action": "Save",
    "entityId": "1079497701",
    "entityType": "Track",
    "nonce": "0xe8883fec7446faa82563c4d0e2bba3d4e6a4ff15542721c52697090f6fbf9125",
    "signature": "0x012ad4bc384c719fc5191dc1a4641cca552b2730a8d219070699e6bf76c4039d3eb3584d14203c32e3b7c812555875adbbe9af19e5c467fd108ac66e17ce5db81b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}