UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VvWaHs1I+BosPL4orOwF9gpSkISKvHpdWNJcD8Aapm8=' 
WHERE 
  key_id = '187306532954598e8ab4567515e1ff5016b4195063f6894b2cf1d78404b78393' 
  AND (
    token = 'VvWaHs1I+BosPL4orOwF9gpSkISKvHpdWNJcD8Aapm8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )