public static void Main()
string test = "postedByUser='Jason, Bourne' postedById='48775' Text='Some text in here' postedDate='2020-04-21'";
var dict = test.Split(new string[] { "' "}, StringSplitOptions.None).Select(t=>string.Concat(t,"'").Split(new string[] { "="}, StringSplitOptions.None)).ToDictionary(t=>t[0],t=>t[1]);
Console.WriteLine(d.Key+" "+d.Value);