{
"manageEntity": {
"action": "Save",
"entityId": "724216097",
"entityType": "Track",
"nonce": "0xfbd6edc152e741d95d44633a8cbadcb570a02b31b10e9bf402f913895479fcd1",
"signature": "0xf9215f6bdcccc0116e94e7adebdc914b3d206ecfa711aa30a0080a9e6779d95c24f9e26dcc803b7fc01330782157e48a989cf11a273536e64ffb7889370817891c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}