{
"manageEntity": {
"action": "Save",
"entityId": "985282546",
"entityType": "Track",
"nonce": "0xf5e18ddfb5304a6dbedb16fb3f276ae8f24e42b6f6c5568b69e29ce7d0bf09ed",
"signature": "0x0fbfcff372fedc6486036ad3686d483d005e3df813c2a097240d85021488109254048edab8dea2705a93cc76e706b8a783d99b65ffec3b5f350f4ef9c51e7a371b",
"signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
"userId": "386745392"
}
}