{
  "manageEntity": {
    "action": "Save",
    "entityId": "979063247",
    "entityType": "Track",
    "nonce": "0x8084763c7fb2c8236dbed5fb82bddadf4e023383bc91cb16e15e34fdc2c27bd8",
    "signature": "0x4f248efeddd30c54fa65bc8d5757865b9e73a6d40e36dd33eea8be84549ed3f9146df91774fba9b767569e404739c0e2037666607962a1d48e153cfb39667a481c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}