curl --request POST \
  --url https://api.deliveryman.ai/api/v1/email-sequence/ \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "campaign_uid": "<string>",
  "sequence_data": {
    "order": 1,
    "subject": "<string>",
    "body": "<string>",
    "next_message_days": 2
  }
}
'

{
  "id": 123,
  "subject": "<string>",
  "body": "<string>",
  "order": -1,
  "next_message_days": 16383,
  "score": 1073741823,
  "verdict": "<string>",
  "suggestions": "<unknown>",
  "blocked_reason": "<string>",
  "is_flagged_for_approval": true,
  "block_approval": true
}