UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Md6Ijh5xQq85xSej4OQjDn5XQN32ztb1rE/o+wTAOZw=' 
WHERE 
  key_id = '8c4e4c81b5db0f6fe3899cddc30fc05ce527c5268375f14809f4ff1cbc490f6f' 
  AND (
    token = 'Md6Ijh5xQq85xSej4OQjDn5XQN32ztb1rE/o+wTAOZw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )