{
  "manageEntity": {
    "action": "Delete",
    "entityId": "689630045",
    "entityType": "Track",
    "nonce": "0xf26287f1e8c6ef0bedd47613120adfc49ebd7347c555b981129bf8bc3109e42d",
    "signature": "0x56c9d829524102a7025113ead0bccaec7e5b8ae077bfce59a9990335e4c7bb6d06de3b0996335701b2054a8683866b17bdb64143ea06f2bcfc197282caa049781c",
    "signer": "0xb68BFE7F0469f0cF3ead82d40A5fDb851FED9Bf6",
    "userId": "63581371"
  }
}