UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sBhXQKbvCP5kJRn63QLwFO1eAYz0niqR21aRIEvb4VM=' 
WHERE 
  key_id = '5b46b703cc25a6eb48773943e41d652669098f570b3eb6c350f7b4435c3f21d1' 
  AND (
    token = 'sBhXQKbvCP5kJRn63QLwFO1eAYz0niqR21aRIEvb4VM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )