UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VTcWtjoFUxnwmvr0bYAUymYVTkHuBdjajAmAvelbctI=' 
WHERE 
  key_id = '8b7591441ab08b9ec971e3b1e34a90a0531e2f6918677d17eb1de586e4ff456a' 
  AND (
    token = 'VTcWtjoFUxnwmvr0bYAUymYVTkHuBdjajAmAvelbctI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )