{
"manageEntity": {
"action": "Save",
"entityId": "1787023688",
"entityType": "Track",
"nonce": "1792421177131813139",
"signature": "0x701040a520a0ae7f05419ac50a6b6228a8feac2c8682749d7880d5da5ff6aea0270c886868e2668b5b6012692591a2abbbe56394200e2ff7b0d213fdf2ddca821b",
"signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
"userId": "881446128"
}
}