UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'znhKhw0r0gkyiCMd4TiErjiU612Xh3fcg5y7NUpON+c=' 
WHERE 
  key_id = '803d95afc922c1a2840e35585c5791de264b1c633351ca0cf20c60bb3231b5cf' 
  AND (
    token = 'znhKhw0r0gkyiCMd4TiErjiU612Xh3fcg5y7NUpON+c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )