UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'awArulTP9Wt2WFsf418bdMuhWtK0XCC1fgYdoVzX8mY=' 
WHERE 
  key_id = '9bd856bd75d124463e97cf3575b001c2e48f256e770b5e616de4eb995a778164' 
  AND (
    token = 'awArulTP9Wt2WFsf418bdMuhWtK0XCC1fgYdoVzX8mY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )