{
  "manageEntity": {
    "action": "Save",
    "entityId": "229962167",
    "entityType": "Track",
    "nonce": "0x483558f234dbe0caeedf0136ad8f3b3b4e41a16e77d829ba4515d1673bf11bbe",
    "signature": "0xdb62ee453d00170de0a3ad83fc56c7ac4d12a52cc8a75661fced73bb38cfa8c3198aa5862e68400043191baf07a7b5073fde1111599cc2230fbb832467f7dc9f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}