UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'w5r48Cy6U28oNfeRmjOJc5BjL/0XljOfFgLeZ1Y807Q=' 
WHERE 
  key_id = '660adbc0eaae7b41c1fe748e3ba58bd63d28eae7a3368a9b1dcb61b25b0a5416' 
  AND (
    token = 'w5r48Cy6U28oNfeRmjOJc5BjL/0XljOfFgLeZ1Y807Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00052