{
  "manageEntity": {
    "action": "Save",
    "entityId": "82436918",
    "entityType": "Track",
    "nonce": "0x76004b63aa9ed3d9f0440fbdf3a839be83e32ac12ad7291144312ca33fa3e476",
    "signature": "0x9c6961ec0ceea448ffa6832d9d3367b62771d0d8bfb84936d272476b007e3a952cda209973d109e36278f7cceef8d820504fc7349c7a37b880edf0ca303ce5a41c",
    "signer": "0x442b56FA7fdf42Ae6c15F3A4663692903B358230",
    "userId": "142026"
  }
}