{
  "manageEntity": {
    "action": "Update",
    "entityId": "209203079",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe7aacc5d740f4f79f9aa71819d9ebfce71993fabf0f67718d6ff885c9015f8a0",
    "signature": "0x2be4e30b1be73eef09e4f924d0c7bc04d63698203a6c45c823e17c94612985293f24764a9fa15db3db7f0dbcc4d31ced6473472f2d09b5df7af5ad49aadcf5881c",
    "signer": "0x9b591e6bE80B48E05B521591fD009a80055a916D",
    "userId": "209203079"
  }
}