Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,603,772",
      "signature": "0x90ec9bb4acfb553b7d8b4a5ed46ff7b810a7603cc1b0bbbdfec1b1c9f256a666b8aada712dd54d70566ff4c936e80b77",
      "randomness": "0x02018dbf8f2be3f396d26a63881c3591b16b6783beb61b60a5a4d379fec1cf3c"
    }
  ],
  "blockNumber": "7,421,259"
}

{
  "Sr25519": "0xc6fd9a78ab05e16f35e6ad678688a28eb991d3bbb9c1a36d2db8a3734d48f353ab36e03117b06d8a299d1a624816dc9da7a4321817fd3e564fc3593ce0dea485"
}