UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QHcceaxxqr/oQHt0NUdxk1mf9c4krDI+I4qt22XYWJQ=' 
WHERE 
  key_id = '75d7b1e6f0a7782a3d05e0bea52f28e9e3781e4f54d00c63d2a0a958f08a5030' 
  AND (
    token = 'QHcceaxxqr/oQHt0NUdxk1mf9c4krDI+I4qt22XYWJQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )