{
  "manageEntity": {
    "action": "Save",
    "entityId": "333041494",
    "entityType": "Track",
    "nonce": "0xcbd994689b49ee91f4184ecff74a0e4ebee8e80ca62df6405e9ac62060260ca6",
    "signature": "0xe7b4627805827ac7245d7fa8384179392a76dc93fdba8c85413c6e3af86572e84b9537db0951258e2d4f18100a5f53f2b5147017c1669667bd2f28b617c21f581b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}