UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vSbRAGSWE80v/4kHIV0HjRy3BYBD0OtprDjXp4js0zg=' 
WHERE 
  key_id = 'c54e7356b88a5a30948870f4ff839347d208890f33d4f84c25f428426236ef43' 
  AND (
    token = 'vSbRAGSWE80v/4kHIV0HjRy3BYBD0OtprDjXp4js0zg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029