{
"manageEntity": {
"action": "Save",
"entityId": "1065082891",
"entityType": "Track",
"nonce": "0xdd594d9ce10e6dd012af36d18be0d88c38510acec4c8635300046e7a5a256e4f",
"signature": "0x2b425eaaf799821e46febe09f1b9268234a89550225f33f2b3c7db9260e7c23179c74bd7d8f2fe7f95d44eaa1a302b67edba6ad28ee744d65493c21d097305881b",
"signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
"userId": "981716494"
}
}