UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5Bmx7Fobm8TKiB1YrHL2HdWHigwwFotBrrVoSY1DrDE=' 
WHERE 
  key_id = 'c7f4a20849768039033449224bf550b041339b96eca435fd7aee566e81efb030' 
  AND (
    token = '5Bmx7Fobm8TKiB1YrHL2HdWHigwwFotBrrVoSY1DrDE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )