{
  "manageEntity": {
    "action": "Save",
    "entityId": "36727",
    "entityType": "Track",
    "nonce": "0x242ee34ded65e34d6eb3a641fc94be71ffaea69ad0f24c4034db95ef20965035",
    "signature": "0x26e7ed21d2aa524216c196b3bbb793b043f612485891c478f5d5135b60d2b509634607825695a974284ed08ce5ba8389864edd436ab9c66551bc62fc6477d0a51b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}