UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tUzsMMfQPIlMmd1FqoaZKo2whHq4SgpUTpHzDcUUqVw=' 
WHERE 
  key_id = '821fa8065ed0c916ef161947f591f28416691861492621e972c05780ea5ebf97' 
  AND (
    token = 'tUzsMMfQPIlMmd1FqoaZKo2whHq4SgpUTpHzDcUUqVw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )