UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qWYMT7QCcgM91uHWjZzfyNvNr0qz+2xhrfdmuagwEBY=' 
WHERE 
  key_id = 'c3b87a60eda67a9f9b458b2e2993123fce662559b8b94dd397573678251de81c' 
  AND (
    token = 'qWYMT7QCcgM91uHWjZzfyNvNr0qz+2xhrfdmuagwEBY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )