Webhook Lead Event - Invalid Signature

curl --location '/v1/facebook/webhook' \
--header 'Accept: application/json' \
--header 'Content-Type: application/json' \
--data '{
  "object": "page",
  "entry": [
    {
      "id": "{{meta_page_id}}",
      "time": 1786204800,
      "changes": [
        {
          "field": "leadgen",
          "value": {
            "ad_id": "101010101010101",
            "form_id": "{{meta_form_id}}",
            "leadgen_id": "{{meta_lead_id}}",
            "created_time": 1786204800,
            "page_id": "{{meta_page_id}}"
          }
        }
      ]
    }
  ]
}'