{
  "manageEntity": {
    "action": "Save",
    "entityId": "1079810393",
    "entityType": "Track",
    "nonce": "0x518ac817c2f323d8069206e6ebfb80c1b7d61bcd99beb7b41677d5e4e634fc2c",
    "signature": "0x31779b89b0ee3ec2e1527174e2aaa5d7efe44bac224b25fba8a779be67aa71db5c46e6bcb431ec5e9b903a71a82c92eb1735a65589dec284e652da77212f8b4d1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}