Your problem is that this portion of your message string does not conform to the JSON standard:
"u{1F3FD}"
According to the standard, u four-hex-digits
represents a unicode character literal given by the hex value of its code point. Your string u{1F3FD}
with its curly braces does not conform to this convention, and so Json.NET throws an exception upon trying to parse it. You will see a similar error if you upload your JSON to https://jsonformatter.curiousconcept.com/.
Thus it would seem, to fix your JSON to make it conform to the standard, you need to format your character like uXXXX
using the appropriate 4 hex digits. However, your character, U+1F3FD
, is larger than 0xFFFF and does not exist on the Unicode Basic Multilingual Plane. It cannot be represented as a single 4-digit hex number. c# (and utf-16 in general) represents such Unicode characters as surrogate pairs -- pairs of two two-byte chars. You will need to do the same here. The UTF-16 (hex) representation of your character is
0xD83C 0xDFFD
Thus your JSON character needs to be:
uD83CuDFFD
And for your entire string:
{"message":"jjasdajdasjdj laslla aasdasd ssdfdsf!!! ??uD83CuDFFD", "updated_time":"2015-04-14T22:37:13+0000", "id":"145193995506_148030368559"}
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