{
  "manageEntity": {
    "action": "Save",
    "entityId": "1118993",
    "entityType": "Track",
    "nonce": "0x00ac0ad0929efcce0276c9cb23e4f9cd3be6cbe7c9bb915613f6e3a8176901bf",
    "signature": "0x2e23b007da6227daea6f6958347bc6a13852f95709efb7a602d232f048136083441d96895df9e738aa00b8895be367cf0df21fd2db8b9ed8ad74aa11f9ba293c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}