curl --request GET \
  --url https://api.notifique.dev/v1/campaigns/{campaignId} \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "id": "<string>",
    "name": "<string>",
    "status": "DRAFT",
    "templateId": "<string>",
    "channels": [
      "whatsapp"
    ],
    "segmentId": "<string>",
    "audienceContactIds": [
      "<string>"
    ],
    "scheduledFor": "2023-11-07T05:31:56Z",
    "instanceId": "<string>",
    "fromEmail": "<string>",
    "variables": {},
    "startedAt": "2023-11-07T05:31:56Z",
    "completedAt": "2023-11-07T05:31:56Z",
    "errorMessage": "<string>",
    "createdAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}