UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '48gJNyr66iuz8IpZqRrsGqZl2MygVjUSwEt01te30Kg=' 
WHERE 
  key_id = 'd936fab986ccb580bd558bf85d4cf86ff70ad498af1d9bcda067e111f5969f50' 
  AND (
    token = '48gJNyr66iuz8IpZqRrsGqZl2MygVjUSwEt01te30Kg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )