{
  "manageEntity": {
    "action": "Save",
    "entityId": "826019",
    "entityType": "Track",
    "nonce": "0x3ed7d083c04eebecbf83ee6fbbd762b10ff3195e91d1de00f72429d1b1c79211",
    "signature": "0xc28731b8d622eace1e6297c5f6109b8f737d105f26f8458fd2144176237d7e6b1dc99f555b7404933b9ead0a05c797f4b945ad5854a32e6444caa59db79903441b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}