Why do I get string response from SQL stored procedure using typeorm?

When I call this stored procedure in my SQL database using typeorm:

const d = await conn.createQueryRunner().query(`....`)` 

I get JSON prefix key with string result.

For example:

  { 'JSON_F52E2B61-18A1-11d1-B105-00805F49916B': `[{"id":8405896,"statusCd":3, ... 

This is how it should be? I need to using JSON.parse, OR I missing somewhere parameter?