{
"manageEntity": {
"action": "Save",
"entityId": "2058068495",
"entityType": "Track",
"nonce": "0x387bb4b897dd6103033a34242c7be5e88ef9e36fc040b430228751b033397a60",
"signature": "0x86adfefd1e29f0d5ae3ed9d3214d69206f69959d1e6a21318a8fc61f0852b12a36bda5d9f7c0f5b04d661e944443ea57f1b329885928e429d10b244c24c813b01b",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}