UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YtIjjSWc+UdlLTfQuoDe1eQCaj4ueS2oo+doWE5F95o=' 
WHERE 
  key_id = '51a489eea2a4a948b5c9fb53011a7c957dc8a10d510862138278e088b591182d' 
  AND (
    token = 'YtIjjSWc+UdlLTfQuoDe1eQCaj4ueS2oo+doWE5F95o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )