{
"manageEntity": {
"action": "Save",
"entityId": "2088320843",
"entityType": "Track",
"nonce": "0xbe7197e211fdfd1fe7505c3e12b0f85feef6ef801042381305b355c934db4675",
"signature": "0xf5edd791015e3bca81e63c47cdc3f81359cbde8186066505506ab6b57f6fe24f10356ef5e113998e5064ea7ddb88b266cc078c74e7a40a881283f3adad8d04a31c",
"signer": "0x0168976438910D2f5330323a0d0141Fb4Af95032",
"userId": "317847"
}
}