OpportunityCreateRequest

{
    "name": "Summer 2025 Promotional Campaign",
    "owner": "550e8400-e29b-41d4-a716-446655440000",
    "targetGoal": 50000,
    "targetBrandsCount": 5,
    "startDate": "2025-04-01T00:00:00.000Z",
    "endDate": "2025-06-30T23:59:59.000Z",
    "submissionDeadline": "2025-05-15T17:00:00.000Z",
    "status": "created",
    "tierIds": [
        "tier-123e4567-e89b-12d3-a456-426614174000",
        "tier-987f6543-a21b-98c7-b654-321098765432"
    ],
    "meta": {
        "testFlag": true,
        "priority": "high",
        "estimatedParticipants": 10
    }
}