UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GUjO/NArnj9r4tC4DwWYWRUSt+MAhDwz8WWQOsChNRE=' 
WHERE 
  key_id = '21e5494c43d00b3b05a0c82376fd3ef2091e3bdf2a740373d3b8e729f58e3bc8' 
  AND (
    token = 'GUjO/NArnj9r4tC4DwWYWRUSt+MAhDwz8WWQOsChNRE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )