Attempting to call this in the API 🙂 {“query”:“mutation ($boardId: Int!, $columnVals: JSON!, $itemId: Int!) { change_multiple_column_values (board_id: xxxxxx, item_id: xxxxxx, column_values: {"nick_name":"test123"}) { id } }”}

I get the error
{“errors”:[{“message”:“Parse error on "nick_name" (STRING) at [1, 154]”,“locations”:[{“line”:1,“column”:154}]}],“account_id”:xxxxxxx}

What am I doing wrong ?