Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,577,689",
      "signature": "0xb3e6055803b86530114d2b6e7f323580994fe4f6731e39ae71569e3f56cf20d48523af8480f7adca5e21d8fb310b8df3",
      "randomness": "0x638ef2f7ba8f9d373016e3e425419c58104adf75d402be45d421642f4cd5456c"
    }
  ],
  "blockNumber": "7,414,758"
}

{
  "Sr25519": "0x681501b7b7c09723163e59e7a38617e5796f8f34ebbe49497765f82895eaae7d842e76728d35ba9c1c2d8b5fb4de341830f765c7a465a79a3ee938d2b98aac8f"
}