UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VmTvTfWp93A1nqu6KnHKaf3VsWCwKVh3PpDUGkqjGq0=' 
WHERE 
  key_id = '76a78568a1a52d5c548f8c3a822144986fa359a5b332dc2a6cccafa943194840' 
  AND (
    token = 'VmTvTfWp93A1nqu6KnHKaf3VsWCwKVh3PpDUGkqjGq0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )