{
  "manageEntity": {
    "action": "Save",
    "entityId": "2136019975",
    "entityType": "Track",
    "nonce": "0xccc38dc2859fff2310715e37559d8e796753542cd5f4a3e7a7e019e0c9852c56",
    "signature": "0xc5ee382ed03d580f63053affaa3a2199b00e12e74757a8d94a8fed320d0f115a58adf11a206ab37c741c6ea12c4b93db4a592bbe41215da51dda44fd3017f3641c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}