{
"manageEntity": {
"action": "Save",
"entityId": "1005599961",
"entityType": "Track",
"nonce": "0xb0277226d6a3f8febd65a3d88a9bc5090ebfa56ca11f5170348a52436c830db5",
"signature": "0x827f0e69dbcb13635dff79a13a22803cf2e005deea300e9297934cc9127720176ce14583d8637947eb61b9d097caaac6f78015269db59a1c44f2643b93e091c71b",
"signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
"userId": "35251"
}
}