{
  "manageEntity": {
    "action": "Save",
    "entityId": "80729",
    "entityType": "Track",
    "nonce": "0x1704b8cad7f6506c1f087ee9911b1bafa7db186375ebe83ce5e96ccef8b23b16",
    "signature": "0xdd45b4dfd83baa96d03483a998f0f3e622f15682238f9c448438696b6f9472b02e1300d4640f00701608f23e3939f941f53968795805321ef6f9ad44e3f804e81c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}