UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8u3KGaTLT9VDjzwsRlDbC3cBJYsTqnMI1gpOWo+AZFU=' 
WHERE 
  key_id = '51516abdcb9b5a15384e822d95a5600b23b4eced2639faf8dff6fb3960aa1ae2' 
  AND (
    token = '8u3KGaTLT9VDjzwsRlDbC3cBJYsTqnMI1gpOWo+AZFU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )