There is a published list of JSON Escapes in RFC 4627. The \u#### will present some challenges.
\" - Escapes a double quote (")
\\ - Escapes a backslash ()
\/ - Escapes a forward slash (/), optional
\b - Escapes a backspace
\f - Escapes a form feed
\n - Escapes a newline
\r - Escapes a carriage return
\t - Escapes a tab
\u - Escapes a Unicode character
These links may help: