UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EauWR8wyo6QmPScxUg5hp4LXBoGVy+mKRUFX8kSPzLY=' 
WHERE 
  key_id = '3fc854b7075c4683bfd6a99073daf482174c2414ef43ed6bba1ac1ca6d0e8986' 
  AND (
    token = 'EauWR8wyo6QmPScxUg5hp4LXBoGVy+mKRUFX8kSPzLY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )