{
  "manageEntity": {
    "action": "Save",
    "entityId": "61940",
    "entityType": "Track",
    "nonce": "0xba817c497663303a733116f539e2a0d4807c507979f010eb1ac156b1b924eb17",
    "signature": "0x91ad87bdd3c79f6cf9588f20c516a3836c2eb9ae9e6e5675d3143158fc95a5d74289a6e3d77cafe6026f85824d4e5fbb380347df40a7fa61b797094e896405691c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}