UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iSRuVtYa1bh6KNzS7FHZiixph8k77520voV5XLhViqU=' 
WHERE 
  key_id = '15b2b23dcf9d7312e9c15fa64d34135e7450e78c18109857c34f2c856aa75f73' 
  AND (
    token = 'iSRuVtYa1bh6KNzS7FHZiixph8k77520voV5XLhViqU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )