Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,549,050",
      "signature": "0xa66d960fb2a33dce75c42455d8838208da531d599ddcda9e544d16e2232aa35f5b18554d2d12b5407dc7d11c44174056",
      "randomness": "0x1bfe540b8633855ca85f85bc497fe3c0df31c97d8221025294a8b2283035d259"
    }
  ],
  "blockNumber": "7,407,598"
}

{
  "Sr25519": "0x64e43945aa9956fd8dad41e530b4fda0df0efa54e1f25d6114ae0015fa1d145fea444225903585862fb1486cee893eb389d8ad694a1c5356b5838117bf13e886"
}