{
"manageEntity": {
"action": "Save",
"entityId": "2064191420",
"entityType": "Track",
"nonce": "0x2f249418192731bdbadd3e081ea69ab7000f666852fc7729625eda72a4746a6e",
"signature": "0x342f1f3c1a4b9e635e889e11e25aee8094d7958b8dc5f741f172dd01b5d9060d1c287251b7bfb0d095d5914e4995dc073ee09647e70215db9805984ad30667bd1b",
"signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
"userId": "35251"
}
}