UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MOeZDwOwXRDPb3bmiZayJSbno6YiGJVyvecPLhnbETI=' 
WHERE 
  key_id = '6b4004b25a5ad37a18371e48673fb9377788b9db46a8b19d3ad98d7ba355843b' 
  AND (
    token = 'MOeZDwOwXRDPb3bmiZayJSbno6YiGJVyvecPLhnbETI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )