UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mGauJjmkA27/gYnfs/DnjeZx1vPWAGrDJILj4XgY2+c=' 
WHERE 
  key_id = '251cc6a8afbdb06a08c0902ee5931eb4d1fefd42a4ed4121e8d41dcbf7ab52b5' 
  AND (
    token = 'mGauJjmkA27/gYnfs/DnjeZx1vPWAGrDJILj4XgY2+c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )