curl -X POST "https://partners-backend-1038109371738.europe-west1.run.app/api/v1/8453/rewards/0x..." \
  -H "Content-Type: application/json" \
  -H "X-Partner-API-Key: your-api-key" \
  -H "X-Partner-Name: your-partner-name" \
  -d '{"is_staked": true}'

const response = await fetch(
  'https://partners-backend-1038109371738.europe-west1.run.app/api/v1/8453/rewards/0x...',
  {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'X-Partner-API-Key': 'your-api-key',
      'X-Partner-Name': 'your-partner-name',
    },
    body: JSON.stringify({ is_staked: true }),
  }
);

(empty response body)