{
  "contract_id": "maestro.facebook_ad_file_check",
  "contract_version": "0.1.0",
  "record_id": "",
  "record_owner": "",
  "media_type": "",
  "placement_ids": [],
  "rule_registry": {},
  "asset": {
    "asset_id": "",
    "owner": "",
    "expected_file_name": "",
    "file_name": "",
    "sha256": "",
    "byte_count": null
  },
  "decode_evidence": {
    "kind": "local_binary_decode",
    "state": "pending",
    "observed_asset_sha256": "",
    "detected_mime": "",
    "byte_count": null,
    "width_px": null,
    "height_px": null,
    "decoder": "",
    "observed_at": ""
  },
  "native_checks": []
}