{
"manageEntity": {
"action": "Save",
"entityId": "516152373",
"entityType": "Track",
"nonce": "0x5e3d4b8a0d90b28690e0674dba95a8adef5f9da6c63bdb278cd6c7114cf5082f",
"signature": "0x6a148f82c9b9f8d81dfe0491bccf7a93decc7d86bea468c82f1364c050b749130be6e0c51e985e28da1760ebdb903049cbc950852299e53c20ba1ec4d4599df71c",
"signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
"userId": "571117272"
}
}