public class User
{
       public string UserName{ get; set; }
       public string Sex{ get; set; }
}

 public async Task<IActionResult> RunListAsync([FromBody] dynamic param)
        {
            if (param?.users != null)
            {
                List<long> ids = param.ids.ToObject<List<long>>();
                List<User users = param.users.ToObject<List<User>>(); 
            }
            else
            {
                return Ok();
            }
        }