{
  "manageEntity": {
    "action": "Save",
    "entityId": "88011",
    "entityType": "Track",
    "nonce": "0xc38b71f584b2671f523559f39b51284f7c0e3693060212ff1ea35d586ec8c3fd",
    "signature": "0x32efa051851ce100bd675fa8dea20317a0dea6dc8ef09cb4b1733edcd695a9e223a33cb1389a085517e5d44f7b0e982aaf66dd7d700ab2340dc57a0725603a8b1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}