curl -X POST --location "https://example.com/wp-json/wc/store/v1/cart/update-item" \
    -u consumer_key:consumer_secret \
    -H "Accept: application/json" \
    -H "nonce: deadbeef" \
    -H "Content-Type: application/json" \
    -d '{
          "key": "e3ead8396bb9598bf7092a1e78446b9f",
          "quantity": 2
        
        }'