UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PEYrVbPlcsc58LUTEfVxWMekIzql5eakWrub1Uat0AA=' 
WHERE 
  key_id = '50d55979590f1ff207d4d4190f434aac6a7ff306896be2303dc58fc802c68742' 
  AND (
    token = 'PEYrVbPlcsc58LUTEfVxWMekIzql5eakWrub1Uat0AA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )