UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'S86kM9gkQfuCCWym+tZi56NlmGyij8EXcW1QKfTLepc=' 
WHERE 
  key_id = '6a690dcf3337bcac38d6d47e4c6a45b7ad2ac8bf41cedf9f5d80f8ac5262e1c2' 
  AND (
    token = 'S86kM9gkQfuCCWym+tZi56NlmGyij8EXcW1QKfTLepc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )