I want to retain curly braces in my string  (which is a combination of some Static string  & Dynamic variables. but when i concatenate a variable with static string which contain curly braces the output become blank. if  i remove static curly braces the output come as expected.

String    Vikash - {'__Metadata':} ‎‏{Variable:output}
Output     output

when i log Output variable it is blank but i remove the static curly braces i got the string.

String    Vikash - '__Metadata': ‎‏{Variable:output}
Output     output

when i log the Output variable i got Vikash - '__Metadata': ‎‏xyz

where Variable:output is xyz.