UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BZrhT9OJGB6LWeAdqdh6eD6KpE4BlGWcCQdgMaGcxzI=' 
WHERE 
  key_id = '55b810803a9d000da6eb677876019f4da35d213ca570aec59ae208429b3bfac8' 
  AND (
    token = 'BZrhT9OJGB6LWeAdqdh6eD6KpE4BlGWcCQdgMaGcxzI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )