{
"manageEntity": {
"action": "Save",
"entityId": "530959024",
"entityType": "Track",
"nonce": "0x46f4e5e8a14e154dc2332fdb7c24837b41b511442d62957371437b3057dcdc4b",
"signature": "0x878996c4584b9ab1b658a6109f73af6fb3e2cccfcd12816b3e86c75ae99830534eeac648b19fafaaa52a1e7f17ca3fb3a0a1ec8b5eb1319072bc9d87641181261b",
"signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
"userId": "633924738"
}
}