Trouble saving meta data from API GET Call

line_items[0].meta_data[?(@.key=='Backordered')].value

"id": XXXXX1,
"status": "pending",
"billing": {...},
"shipping": {...},
"order_number": "XXXX2",
"line_items": [
      {
        "id": 58290,
        "name": "ITEM NAME",
        "product_id": XXXXX3,
        "variation_id": XXXXX4,
        "quantity": 1,
        "tax_class": "",
        "subtotal": "1220.95",
        "subtotal_tax": "0.00",
        "total": "1220.95",
        "total_tax": "0.00",
        "taxes": [],
        "meta_data": [
          {
            "id": 672070,
            "key": "pa_colour",
            "value": "white",
            "display_key": "Colour",
            "display_value": "White"
          },
          {
            "id": 672072,
            "key": "Backordered",
            "value": "1",
            "display_key": "Backordered",
            "display_value": "1"
          }
        ],