{
  "manageEntity": {
    "action": "Save",
    "entityId": "1278096594",
    "entityType": "Track",
    "nonce": "0xbec170b1e18fe64bd7f8579d6d40099684be8ed68055f23610f7851a70a90527",
    "signature": "0x28588e27b2dbf54b6812b00d89b345cb37bb404a19f8e9e3a80ebed9d713c65b50d77d0e095dfe49beb59442709dc6e80bd4a876bb6c99a0099149be468432fd1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}