{
"source": "book",
"symbol": "<token_symbol>",
"aggLevel": <aggregation_level>
}
{
'channel': 'book',
'data': {
'l': [
[
{
"a": "<bid_size>",
"n": "<num_orders>",
"p": "<bid_price>"
},
...
],
[
{
"a": "<ask_size>",
"n": "<num_orders>",
"p": "<ask_price>"
},
...
]
],
's': '<symbol>'
}
}