import struct
import base64

def base64url_decode(input):
    rem = len(input) % 4
    if rem > 0:
        input += b'=' * (4 - rem)
    return base64.urlsafe_b64decode(input)

def int_arr_to_long(arr):
    return int(''.join(["%02x" % byte for byte in arr]), 16)

def base64url_encode(input):
    return base64.urlsafe_b64encode(input).replace(b'=', b'')

start_param = 'b_TQEAAN4AAAAAAQID';
if (start_param[:2] == 'b_'):
    print(start_param[2:])
    data_raw = base64url_decode(start_param[2:].encode('utf-8'))
    new_list = list(struct.unpack("<%dI" % (len(data_raw) // 4), data_raw))
    start_params = base64url_encode(data_raw[8:])
    result = {
      'bot_id': new_list[0],
      'owner_id': new_list[1],
      'payload': start_params
    }

    print(result)