UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R2d1+t+vEkowTuvpBvAgbLzT0L4GK9WJ557TKBbYbTI=' 
WHERE 
  key_id = 'b51d617b55f42d2f6fe7d8b8299f45f78a8e36cf05f736cca1a80d3974b6ae8c' 
  AND (
    token = 'R2d1+t+vEkowTuvpBvAgbLzT0L4GK9WJ557TKBbYbTI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )