{
"manageEntity": {
"action": "Save",
"entityId": "1174207970",
"entityType": "Track",
"nonce": "0xbbff63a10040c8092067e6f6dcc4b1ee4591dde80456144f36cc5dfbfbb9558d",
"signature": "0x0b011c5245ef03aa0079203ad24b399c8c1509e20ef8e13bcd8a0d9b8016377472c569c11c533657d81324f3221ea4a1bd24f74d9267c018edd514c773d5c2b91c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}