UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kt5++DozTqSgcJxysaCmekz3Pg648fcvyVlv41VOt0A=' 
WHERE 
  key_id = '47c3c74a0dc218e1bd1535bb16646ec8eb69a53d725b036c47a237dbb47f15d0' 
  AND (
    token = 'kt5++DozTqSgcJxysaCmekz3Pg648fcvyVlv41VOt0A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )