UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Po2YpIblGNtcAM3CY7QxQd/TmOFN6PgGTG/NMmA5zA0=' 
WHERE 
  key_id = '6e999b537284366df7e171fa47853ac5b55ae8a1e93b869acde3c7e88b3169cd' 
  AND (
    token = 'Po2YpIblGNtcAM3CY7QxQd/TmOFN6PgGTG/NMmA5zA0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )