OpportunityTierUpdateRequest

{
    "name": "Updated Premium Tier",
    "description": "Updated premium tier with enhanced benefits",
    "targetBudget": 20000,
    "targetBrandsCount": 3,
    "cost": 3000,
    "maxParticipants": 8,
    "meta": {
        "priority": "medium",
        "updatedFeatures": [
            "enhanced-placement",
            "priority-support"
        ]
    }
}