UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r5n6F6MQBZf2VmTa2vtcHqciQ596mCFXXQQKcwJy2DU=' 
WHERE 
  key_id = '835de89cbb6e351755a79728adb9c956048d582b832356ee06aca7b9615d3cb8' 
  AND (
    token = 'r5n6F6MQBZf2VmTa2vtcHqciQ596mCFXXQQKcwJy2DU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )