UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/ytq6rV59Pb+F1lU81mz3yOR5vZULzOEe4+d2Z/CApg=' 
WHERE 
  key_id = '6d2551863d0580781c9004c91593c4ea0fd033eac428be3768e6dee4939e11e1' 
  AND (
    token = '/ytq6rV59Pb+F1lU81mz3yOR5vZULzOEe4+d2Z/CApg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )