Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,550,650",
      "signature": "0x94bf91b388181fc5e5aff1fc22bc9d3f505a596a24563abd704d8197c637dbbebdab548ee0e1968b82b4661bafb25a73",
      "randomness": "0x05fd6dab69729a8e3f662d5b034f95808f9ba9f1500012109bfc7dd9cf565185"
    }
  ],
  "blockNumber": "7,407,998"
}

{
  "Sr25519": "0x30a4ced7160c4ef219b2d5a23b40945f41b65c9962f9462cbff7a2e13dcf347f4bb23fe4aeb7a09ea41b84f607fe5d9f85c86dc6e648960c8afe0aa96118d880"
}