{
"manageEntity": {
"action": "Save",
"entityId": "1329796785",
"entityType": "Track",
"nonce": "0x3fb6298270dbf5175689dcd476f1e30861f79bfbfce5b03cd1a41705f1fbf168",
"signature": "0x0788730421dd4367f7c81800edbe6d9c6f5b8fc0a1d33f8d87b050fecd3465c33ca4e0f26c982719faddddd46c3110b1094595e97db4f7b544e3d2bb88b5ee221c",
"signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
"userId": "683609933"
}
}