Search Token returns value

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int findToken (char* response,char* cherche){
    const char * separators = ",";//Separateurs
    char * strToken = strtok ( response, separators );//Tokenize

    while ( strToken != NULL ) {
        if ( strstr(strToken, "value") !=0){//Value in strToken ?
            const char ch = ':';
            return atoi ( strchr(strToken, ch)+1);//Search : +1
        }
        strToken = strtok ( NULL, separators );//Next Token
    }

    return -1;
}

int main (){


    char response[]=" {\"status\": \"success\", \"data\": {\"counter_modes\": [\"Enabled\", \"Disabled\"], \"glob_dev_id\": 1, \"modes\": [\"Simple\", \"DirectSwitch\"], \"value\": 1, \"circuit\": \"2_01\", \"debounce\": 50, \"counter\": 2, \"counter_mode\": \"Enabled\", \"dev\": \"input\", \"mode\": \"Simple\"}} ";


    printf ("%d\n",findToken (response,"value"));


    return 0;
}