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Subscribe with {"method":"subscribe","subscription":{"type":"bbo","coin":"BTC"}}. Initial top-of-book matches BboSnapshot; subsequent updates use BboUpdate and are only emitted when the top bid or ask changes in price, size, or order count.

Initial BBO snapshot, sent immediately after subscribing to bbo when a snapshot is available.

channel
enum<string>
Available options:
bbo
data
object