{
"manageEntity": {
"action": "Save",
"entityId": "609571347",
"entityType": "Track",
"nonce": "1793578198503521312",
"signature": "0x239edcc0a1cc0c75f4ba25bf82020ebefd9f656ca2847860f2fc315f900363eb20bbdb5552ec48f95f0baac4677ebaa8819dac20d9c2a65f2eb052d48bcfab491b",
"signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
"userId": "881446128"
}
}