{
  "manageEntity": {
    "action": "Save",
    "entityId": "1007768164",
    "entityType": "Track",
    "nonce": "0xbf6dee8a5c4dbd590e85073eebc6798ea679a03f24f7584ed4f218b3de8903b8",
    "signature": "0x2c2b0271c79953887b43ce2e312e7d33e954edb5833f1b77ac05c97dcd5b32453f9cff8ae582b1a03d3426ad24a4cedde01d7da37d2519e851f80f652385361b1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}