36dc0d7d0ac25ce60898c36ca135fbbd        [[12051,840,501,33],{"23602":22}]
4c38528ffe96a15c90e8cfcaaad048e3        [[13308,124,-1,62],{"8002":12}]
5557a6bed3793133754d288e2b58763a        [[2197,840,751,6],{"16501":1}]
5a9c1f69434c1a8b1d7880ef03ae4264        [[7525,616,-1,14347],{"24902":37}]
87f63173118df680a4c1d63b7953faf3        [[2765,458,-1,11937],{"3102":15}]
901d1a5dbd4ed87fd68db2513fb29762        [[1828,124,-1,63],{"8002":379}]
c23a2b2c10af8af96b1b24ddd4cc53d4        [[62,840,820,38],{"16801":303}]
d7af9cd8573ecbec6d42e453439e3e0f        [[4680,124,-1,63],{"1012":1896}]
d93adab6b345608d38ea84811012dce8        [[114,840,819,48],{"22502":322,"8002":3}]
ffd50dd8b4986f40634d6b5925dc04c6        [[6089,840,803,5],{"1252":1}]

##</code><code>##

#!/usr/bin/php

$data = array();

while (($line = fgets(STDIN)) !== false)
{
        list($key,$value) = explode("\t",trim($line));

        $value =& json_decode($value);
        $value[1] = get_object_vars($value[1]);

        if( isset($data[$key]) )
        {
                foreach( $value[1] as $k=>$v )
                {
                        $data[$key][1][$k] += $v;
                }
        }
        else
        {
                $data[$key] = $value;
        }
}

foreach( $data as $key => $value )
{
        echo $key ."\t".  json_encode( array($key=>$value) ) ."\n";
}

##</code><code>##

$value =& json_decode($value);
$value[1] = get_object_vars($value[1]);

##</code><code>##

Input line:
36dc0d7d0ac25ce60898c36ca135fbbd        {"36dc0d7d0ac25ce60898c36ca135fbbd":[[12051,840,501,33],{"23602":22}]}

##</code><code>##

$value before the json_decode call : [[12051,840,501,33],{"23602":22}]

$value after json_decode call (output via print_r):
Array
(
    [0] => Array
        (
            [0] => 12051
            [1] => 840
            [2] => 501
            [3] => 33
        )

    [1] => Array
        (
            [23602] => 22
        )

)

$value[1] output via print_r:
Array
(
    [23602] => 22
)