{
"manageEntity": {
"action": "Save",
"entityId": "248572",
"entityType": "Track",
"nonce": "0xe9ad3e413d7573ef4187f35db5594f3b461a069dc78a7bc199f51d2cc6542bf5",
"signature": "0x804b8feeb45f74d88127345c238ebb37aefd7c69c65b517366d61bda43344d555b8642bd7df173981580e3e00da1bd02e1bf99f8ec35736491bd9d381f6c8b3c1b",
"signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
"userId": "370091516"
}
}