UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'g2AUSkx5T1wds8ZNn/F0e2vYuBYvFSRkU5OpEwItVus=' 
WHERE 
  key_id = '8c68fd4cfbbfb924e2e1e69ba006b3fbb9adfd7dd87b47c73eef05016d5cc57c' 
  AND (
    token = 'g2AUSkx5T1wds8ZNn/F0e2vYuBYvFSRkU5OpEwItVus=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )