{
"manageEntity": {
"action": "Save",
"entityId": "1715038869",
"entityType": "Track",
"nonce": "0x0fe3c9f1bf13862d2b7cadf271bd5937c6b25358268d86f791723181c3677b84",
"signature": "0x40601eda15ec14b5385e490cd506dd181aa79e80ab0e59b684a00530378d9e5c09fdbc6c83b31fa70ea910b1e1405326ca5ddc6ef35b2c194fab33d8f358e8cc1b",
"signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
"userId": "489165782"
}
}