UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ex3yAsph+xT5TsAQzadqWsEra3JzZzuF4jHv1UPBy9A=' 
WHERE 
  key_id = '790b52450f22e959ce40fefe141e06f21e14d12fa5deb5c143447fc28c56174c' 
  AND (
    token = 'Ex3yAsph+xT5TsAQzadqWsEra3JzZzuF4jHv1UPBy9A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )