{
"manageEntity": {
"action": "Save",
"entityId": "1514627988",
"entityType": "Track",
"nonce": "0x33939a49045461ac9a1b833a74d8d9f2c6d60eca4aafbfa24dec4637a9267609",
"signature": "0x601058a6dcdbe0b412a2d4b33b16cc5f53a8bef506aed7bcca68ff1b13b99bc3265944d11441e94df7da0fcacbbaa781ec5ef706d3e4b9316e02c9f8635dfd611b",
"signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
"userId": "887547386"
}
}