curl --request GET \
  --url https://api.example.com/orgs/{org_id}/nodes/{node_id}/diff/{commit_a}..{commit_b}

{
  "target_commit_id": "<string>",
  "added": [
    {
      "entity_type": "<string>",
      "entity_id": "<string>",
      "entity_key": "<string>",
      "object_id": "<string>",
      "old_object_id": "<string>",
      "new_object_id": "<string>"
    }
  ],
  "removed": [
    {
      "entity_type": "<string>",
      "entity_id": "<string>",
      "entity_key": "<string>",
      "object_id": "<string>",
      "old_object_id": "<string>",
      "new_object_id": "<string>"
    }
  ],
  "modified": [
    {
      "entity_type": "<string>",
      "entity_id": "<string>",
      "entity_key": "<string>",
      "object_id": "<string>",
      "old_object_id": "<string>",
      "new_object_id": "<string>"
    }
  ],
  "node_id": "<string>",
  "base_commit_id": "<string>"
}