How to get balance from the response retutned by AT?

Question

I am using Africa's Talking sms services; I have implemented codes to check balance; but now how can I access balance value from this $response array? This is the result of var_dump($response).

  'status' => string 'success' (length=7)
  'data' => 
    object(stdClass)[106]
      public 'UserData' => 
        object(stdClass)[104]
          public 'balance' => string 'TZS 142.2679' (length=12)