UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B15e784//rLZAa3w2Ro5CT1QFFWyDzZkyozEAyv9qY4=' 
WHERE 
  key_id = '458bc2ea0bec599e468677a00e3d83d8c73badbfe5816f259c2713848b8fcbf7' 
  AND (
    token = 'B15e784//rLZAa3w2Ro5CT1QFFWyDzZkyozEAyv9qY4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )