SAP Cloud Applications studio : Call API from C4C with parameter using Japanese characters

Hello

I am creating a WC to get the result of a API request.

The API has many parameters to get only the data I want. I can select by number of items, date, mobile number, name...etc

As I am working in Japan, some data I want to select use Japanese characters.

When I use Postman to simulate the API request as below

I obtain the values I want.

When I try the same request from a QA I have built in C4C, I obtain no value (in data, there is no value)

I have set the variable companyName as LANGUAGEINDEPENDENT_LONG_Text.

The request Content-Type is as "".

Is there any special setting or code to use to be able to send request with japanese characters ?

Regards

Emmanuel