UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kxNWbhZ0SCB3RJg+By8P0gTgxrxRpb6Yq4hmRoPaZmU=' 
WHERE 
  key_id = 'ae3ebcd3b8801bf45e05796787667688a6b3229f4c46321a180edd2c7aa476c8' 
  AND (
    token = 'kxNWbhZ0SCB3RJg+By8P0gTgxrxRpb6Yq4hmRoPaZmU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00033