UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Q8392MjK0jqgIS8BxzKSJO4N7aXU7i3PmyC9S1zh9uE=' 
WHERE 
  key_id = '894737247cb649daa14dd44280b6a6241da82a508297545f2a7afabe9201cd98' 
  AND (
    token = 'Q8392MjK0jqgIS8BxzKSJO4N7aXU7i3PmyC9S1zh9uE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )