{
"manageEntity": {
"action": "Save",
"entityId": "43533106",
"entityType": "Track",
"nonce": "1792422249375240703",
"signature": "0x0926881d293645920f934b7e1d13117775dc84ade8efdc0962c7dfec1c3bd82c676e4492f3a6c49bdd405015b2ae56a85bccdbeeeea5f5fd2faed083064199361b",
"signer": "0xd30fAF377491796757Ef4C1B0ccA8a407920e663",
"userId": "451691735"
}
}