{
  "manageEntity": {
    "action": "Save",
    "entityId": "24155001",
    "entityType": "Track",
    "nonce": "0x64ded420efbe3a92571017a3bf527825519de977c31ca68dc7f93d23c96c06ec",
    "signature": "0x413baf2a08c86f8d9b11a49b27eb1167a27dc8dd00058495f2172d50277772eb1be11b8050f1048b18aecbbca693eff22541abd466c1e9117e5a897971762fe31c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}