{
"manageEntity": {
"action": "Save",
"entityId": "1720219267",
"entityType": "Track",
"nonce": "0xaf66d7c5828402b37642e766bd6ee445dc8c78fde03f2529f5cdcf061b4887b7",
"signature": "0x04d48db1303fa93f4755bd0d799c7ca89a4a08d40017be9047cb95590ac101407f7033497deac6e356a1ffc8aad16feb22c62f9908c2daa108f19faef00024111b",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}