UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U/b/njclIjwaXkolk9tMdu8Xt8huHuMHw0IMMB9azlo=' 
WHERE 
  key_id = '81c1dccbbeb7abed22508a618de10ca29fc240e027ea231e33703f79d9becf77' 
  AND (
    token = 'U/b/njclIjwaXkolk9tMdu8Xt8huHuMHw0IMMB9azlo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )