UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xmm6t8TdG+8MGbqOT8VvHO80boDNCpXU6f+QU9DUIVY=' 
WHERE 
  key_id = '5597e190351366cacce9b834e5e1362918a1941e94749d1fce419a9246453ab7' 
  AND (
    token = 'xmm6t8TdG+8MGbqOT8VvHO80boDNCpXU6f+QU9DUIVY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )