UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xZU9BUSplPqW55tOmQt2VgTB1cxtOXnUqw3vOsEMCx0=' 
WHERE 
  key_id = '175338cc7ee638bb6efb12816420c94aa46fb8781b4daed94a625de1f7827498' 
  AND (
    token = 'xZU9BUSplPqW55tOmQt2VgTB1cxtOXnUqw3vOsEMCx0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )