{
  "manageEntity": {
    "action": "Save",
    "entityId": "1167050675",
    "entityType": "Track",
    "nonce": "0x6fdf8661c1a7134c24fbe94368c80d042716ebca6eafd829895d5cfb71ed5e9b",
    "signature": "0x817f1762e78a9a3b70e9b71076d84ace5c87dbd661e39146d570878bc1cf10db56d38589921691998d55e613a34505f5abf706858d6348f8d4ac78d7f2f61ddd1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}