{
  "manageEntity": {
    "action": "Save",
    "entityId": "1086248798",
    "entityType": "Track",
    "nonce": "0x1b380aeafdfc780d003cde7cab9e51d3432592656327a4e50af3fd0b480c14f4",
    "signature": "0xe53bc4ddec9eac03dfbbb5835a3e2e819b7ba779848d3b377cdc52b021a4c25d2ef2578ea549e193f40a991e583c27976c85e553403ec964f8ae3111e95a381b1c",
    "signer": "0x92a5082636c97Db0Ae888484D85e4c8494A3B791",
    "userId": "895527427"
  }
}