{
  "manageEntity": {
    "action": "Save",
    "entityId": "2053920638",
    "entityType": "Track",
    "nonce": "0xb8c08968eb2086e106bd083df3336641ec9eac6ccf371098dcbc38f19a4972f0",
    "signature": "0xb5ed1d9b0f279b21cca397f742ece7e7f4633658ea903527984084626fb2ed2d7242392cb452da572d268163fcbea1170a9465a3dcfd67c4dbb7d4364ef034c31c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}