UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PAMgzCxM0wvdWPx53yVRXUsGyBVAVeTOb7if8UIa58k=' 
WHERE 
  key_id = '493f33115b3caaaeef9d43fd99b00ff500e0bbd8c32d6ffc0bfe6d231fd50cb9' 
  AND (
    token = 'PAMgzCxM0wvdWPx53yVRXUsGyBVAVeTOb7if8UIa58k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )