UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hDKiR0wDaYfn0wzmRzOdC1ER0V5ryp6mxdHaJ06kEzg=' 
WHERE 
  key_id = '536d7ab3d8b3a13780c99a14811e93a1a956ae4dcef0e31d5a8ac4b6e604c818' 
  AND (
    token = 'hDKiR0wDaYfn0wzmRzOdC1ER0V5ryp6mxdHaJ06kEzg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )