UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KsC6kgBW3m9P9pzobiZco4g4ywKpi4Qe6rAsElGKQqM=' 
WHERE 
  key_id = '51a230a03dad8540d4b5607146360a8ca991adef206626ce5825a964e4912b1c' 
  AND (
    token = 'KsC6kgBW3m9P9pzobiZco4g4ywKpi4Qe6rAsElGKQqM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )