PostgreSQL JSONB fields being encoded as hex (\x...) instead of JSON text when using pgtype.JSONB with sqlx

I'm using Go with sqlx and pgtype.JSONB to store JSON data in PostgreSQL, but the data is being transmitted as hex-encoded bytes instead of regular JSON text, causing "invalid input syntax for type json" errors.

type Platform struct {
    Logo               pgtype.JSONB `db:"logo"`
    Motivation  pgtype.JSONB `db:"motivation"`
    Rules       pgtype.JSONB `db:"rules"`
}

func convertToJSONB(dest *pgtype.JSONB, src interface{}) error {
    data, err := json.Marshal(src)
    if err != nil {
        return err
    }
    return dest.Set(data) // or direct assignment: dest.Bytes = data; dest.Status = pgtype.Present
}

The SQL query shows hex-encoded data instead of JSON: logo = '\x7b2264656661756c74223a22687474707...'

Which decodes to valid JSON: {"default":"https://..."}

ERROR: invalid input syntax for type json at character 435
DETAIL: Token "\" is invalid

What I've tried:

Using dest.Set(data)
Direct assignment: dest.Bytes = data; 
dest.Status = pgtype.Present

Both approaches result in the same hex encoding

Questions:

Why is pgtype.JSONB being transmitted as hex instead of JSON text? Is this a driver issue with how sqlx handles pgtype.JSONB? Should I use *string fields instead for JSON columns? What's the correct way to store JSON data in PostgreSQL JSONB columns using Go?

Environment:

Go with sqlx and github.com/jackc/pgtype PostgreSQL with JSONB columns Data is valid JSON when decoded from hex