Default push: {{ '{' }} action: 'want', data: ['blocks', ...] {{ '}' }} to express what you want pushed. Available: blocks, mempool-blocks, live-2h-chart, and stats.

Push transactions related to address: {{ '{' }} 'track-address': '3PbJ...bF9B' {{ '}' }} to receive all new transactions containing that address as input or output. Returns an array of transactions. address-transactions for new mempool transactions, and block-transactions for new block confirmed transactions.