{
"manageEntity": {
"action": "Save",
"entityId": "1443729592",
"entityType": "Track",
"nonce": "0xfb5f23a7b7c827622ba27fd010c0c7d593273afabee081358c3283a6ee49da0a",
"signature": "0x50aef9e4ecbc63fc92e7b02d8e7ac30e5a7bf7634d3215e2edd7402e781f95516b0c2f1c5b28aa9957006b74eede4cf6f665a877ef9debb1dbf33317d6243e841b",
"signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
"userId": "508263176"
}
}