{
"manageEntity": {
"action": "Save",
"entityId": "361403996",
"entityType": "Track",
"nonce": "0xc72ef042f0fbb7db99a3c4278804c0f4bdd9530d4447cbdbc61b291582a35da7",
"signature": "0x0a8e156cf64dfde0eb17bf264f5e1de1c0e82a6e7cdd1b1ab94c0fea496a217c606e1b4409c5fd3de7dc766b260ab8525ec01ea2f7ab2d6aa09e0f08e3cafdab1b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}