UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nP9oTTMVa9mJZLLBRvl6ztqVUiA7eIxnBNt0W9JzG0Y=' 
WHERE 
  key_id = 'b875b2b8b3e9bb1a993f1d83d71e6cde1ed376d54a94e721d6f6434f09307d8f' 
  AND (
    token = 'nP9oTTMVa9mJZLLBRvl6ztqVUiA7eIxnBNt0W9JzG0Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00044