UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 't0TH5mMTH9kClxQDYK2caFD6UcJN13i4bmNqUzPsBRA=' 
WHERE 
  key_id = '91febcbf52f49df36d0521396441593fd079ecfed3c9c5104dbbfa39f5d1b481' 
  AND (
    token = 't0TH5mMTH9kClxQDYK2caFD6UcJN13i4bmNqUzPsBRA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )