Updating items with numerical value

can anyone help me? the column is numeric, how to update it?

NEW_VALUE = {
‘number’: 222200
}

query = ‘’’
mutation ($board_id: Int!, $item_id: Int!, $column_id: String!, $value: JSON!) {
change_column_value(board_id: $board_id, item_id: $item_id, column_id: $column_id, value: $value) {
id
}
}
‘’’
variables = {
‘board_id’: int(id_board),
‘item_id’: int(id_item),
‘column_id’: id_colonne,
‘value’: ‘value’: json.dumps(NEW_VALUE)
}

rep = requests.post(url =URL, headers=HEADERS, json={‘query’: query, ‘variables’: variables})

the error :
‘error_data’: {‘column_value’: ‘{“number”=>222200}’, ‘column_type’: ‘NumericColumn’}}