UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'twV7CJsHmoHKzbQlyvwJJlmtQUQaJGpUcBfjnQL/9ec=' 
WHERE 
  key_id = '952949904b74760b3e6ff954be04773496f6733b42e529f07fd846b606779ff2' 
  AND (
    token = 'twV7CJsHmoHKzbQlyvwJJlmtQUQaJGpUcBfjnQL/9ec=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )