{
"manageEntity": {
"action": "Save",
"entityId": "786083972",
"entityType": "Track",
"nonce": "0xca92a441b02babaac67d9a534e3341bd626ad30c606b93e690a0edb705e6534f",
"signature": "0x782d469aeb3270b70b976a32fa74e3dacc67f0ca8b0df0000dba9a243eee16d05ffa03d8fc04b57c69ee27b74e2ee7d7f20aa44032bdb63a4c9be941cd2745cf1b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}