UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b703XeWl671aParSZoZVQfgXtthsBVi913PvptdUrRk=' 
WHERE 
  key_id = 'e21de88d5297fec48a3a0fa79cecba1b0491bce693c85780d61a09d1904f4eef' 
  AND (
    token = 'b703XeWl671aParSZoZVQfgXtthsBVi913PvptdUrRk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )