{
"manageEntity": {
"action": "Save",
"entityId": "513614044",
"entityType": "Track",
"nonce": "0xedab164cb6655681367fee6f78485a850eaa330b87d1a172640d60e43a982d48",
"signature": "0x44010f084d10189ebe7c885fc387d73381b1c962e509a6b1011853ce6876f7a75fe88da78a0bec6e5143bc193c33d96323669d140ab70806dbc734bc272bc2591b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}