[
  {
    "id": "test-msg-001",
    "brand": "chipotle",
    "category": "QSR",
    "channel": "email",
    "subject_line": "Free Burrito on Us!",
    "preheader": "Stop by your local Chipotle today for rewards.",
    "body_text": "Stop by your local Chipotle today for rewards.",
    "is_doi": 0,
    "received_at": "2026-11-05 02:21:59"
  },
  {
    "id": "test-msg-002",
    "brand": "chipotle",
    "category": "QSR",
    "channel": "email",
    "subject_line": "Welcome to Chipotle Rewards! Here is your free chips & guac offer.",
    "preheader": "We are glad you joined. Complete your profile to get points.",
    "body_text": "We are glad you joined. Complete your profile to get points.",
    "is_doi": 0,
    "received_at": "2026-11-05T02:28:47.185Z"
  }
]