UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M51/l4fzU57gEaThs5R/owd7175HRMoFGUHyaOnBAmo=' 
WHERE 
  key_id = '503a10170cd19185fc3a9dc1ad8021e6b323b93c938bb71d7e9244f948a6c922' 
  AND (
    token = 'M51/l4fzU57gEaThs5R/owd7175HRMoFGUHyaOnBAmo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )