Incomplete JSON on authentication

I am trying to create a node application which uses the instagram API. When I'm trying to exchange the code received to access token I receive an incomplete JSON:

{"access_token": "regular.access.token", "user": {"id": "idid", "username": "namename", "profile_picture": "https://picture.jpg", "full_name": "Username", "bio": "\u05e8\u05d5\u05e6\u05d9\u05dd \u05dc\u05d4\u05d5\u05e4\u05d9\u05e2 \u05d1\u05e2\u05de\u05d5\u05d3?\n\u05ea\u05e2\u05dc\u05d5 \u05ea\u05de\u05d5\u05e0\u05d4 \u05de\u05e9\u05d5\u05d2\u05e2\u05ea \u05e9\u05dc\u05db\u05dd \u05dc\u05d1\u05d5\u05e9\u05d9\u05dd MyVibe \u05d1\u05e1\u05d8\u05d9\u05d9\u05dc! \u05d5\u05ea\u05d9\u05d9\u05d2\u05d5 myvibeisrael@\n\u05d4\u05ea\u05de\u05d5\u05e0\u05d5\u05ea \u05d4\u05d9\u05e6\u05d9\u05e8\u05ea\u05d9\u05d5\u05ea \u05d1\u05d9\u05d5\u05ea\u05e8 \u05d9\u05e2\u05dc\u05d5 \u05dc\u05e2\u05de\u05d5\u05d3 \u05d5\u05dc\u05d0\u05ea\u05e8 \u05d4\u05e8\u05e9\u05de\u05d9 :)\n\ud83d\

Which I cannot parse. Would appreciate some help with the issue.