Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,552,012",
      "signature": "0xb8cfe2df08200fb1e952c07cdc90c5787a5ed1c363dc0a867f8e18db23caf5dd0db0916bbd5bb2f8e9cda2ca9aa63a93",
      "randomness": "0xfdefdc25fba3a551646f6140e2906860ed37eb3be42928df3e5cd0a73683bb89"
    }
  ],
  "blockNumber": "7,408,338"
}

{
  "Sr25519": "0xd6b6c17b867fca5ea82351f65e979d39c20f449dc40e68d58ae5fde85d441711724b2a88391d9cf216e3a9bdc6340a459299b9a10c442319224e7e3435b9a481"
}