Vehicle position api returns currupted data

i am accessing vehicle position api and it returns me data something like this

�q�66C��=C-���>(����B
1006
Borrowdalef
$52583ecc-f2c4-4e48-9ab9-9b4c3ce0f992">

�q�66C��=C-���>(����B
1006

please help me

See Get realtime data - #4 by alejandro.felman