JSON deserialization exception - unable to deserialize java.util.ArrayList instance from START_OBJECT token

Below is my JSON response,

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Unable to deserialize java.util.ArrayList instance from START_OBJECT token to [Source: java.io.PushbackInputStream@bce1d9 ; line: 1, column: 556] (via link chain: com.totalHours ["data"] → com.totalHours ["hourly_totals"])

 "totalHours": 
  {
     "hourly_totals": 
     {
        "2013112101":
        {
           "distance": 1324,
           "calories": 90.0120018125,
           "steps": 1603,
           "active_time": 793,
           "inactive_time": 220,
           "longest_active_time": 302,
           "longest_idle_time": 780
        },
        "2013112101":
        {
           "distance": 626,
           "calories": 47.0120018125,
           "steps": 455,
           "active_time": 246,
           "inactive_time": 260,
           "longest_active_time": 203,
           "longest_idle_time": 650
        },
        ... more hours ...
     }  

      

        
        
        
      

    

I took the pojo class as shown below. I am getting an exception when I try to deserialize my json data.

public class totalHours{
private List<String> hourly_totals;
}

      

        
        
        
      

    

But I don't know if I should take the list because there is no array in the answer. What are the other options for testing.