{
"manageEntity": {
"action": "Save",
"entityId": "102608933",
"entityType": "Track",
"nonce": "0x61dd69c9d3983dc57a3c5a701637a8e67801c95bc4da4f364dfca01083cc20be",
"signature": "0x99e01aa1f583d12c6a0d88c18e3c40883a34180187c5f29ef0125ae966680c0e72f704b1454723b3ce3b6a53c60559d76d8f25e94406a2256c753f42090af8f31b",
"signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
"userId": "571117272"
}
}