{
  "manageEntity": {
    "action": "Save",
    "entityId": "1081549541",
    "entityType": "Track",
    "nonce": "0x7fae014a09420b97f1af68a6953c8452e5aa2ac98e89a06a72d3d0142c6efc2a",
    "signature": "0xc344b7b9291bf6a092c7b52c86ea10d06ba10709f06373ac88329cc94e27f6873f21de49e0f82a76248176f4384f86c182efb53d242a0343d08fdd2c42e80c251b",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}