{
  "manageEntity": {
    "action": "Save",
    "entityId": "2101793064",
    "entityType": "Track",
    "nonce": "0x665fb91f39be56108e4e04f88c7d3ce90ec345e692882ce265d9dfad24649677",
    "signature": "0xe6a6f75e7907e694d193bb2dd264ea9bafde9f346b5f9f17d2e919461971fc89617ab060311aac952ca82786c94d0309d149c30de45ece8e1cad821f5d8f54c81b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}