UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5icMyYO7daSAhuvmh6EBQ5O85kTZzuCttJlWs4LVJm0=' 
WHERE 
  key_id = '51f5c3ba32e770b7ae071a5f975c6d453893c134d8cd16dcaa1fc64458b8e52d' 
  AND (
    token = '5icMyYO7daSAhuvmh6EBQ5O85kTZzuCttJlWs4LVJm0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )