Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,539,391",
      "signature": "0x8415f4d947d9fdd5a52830a5645bd5ccaac1c56fe8d63869c3509f3f0952a382afbdb8763b2bf338d622af315be5a252",
      "randomness": "0xc7d3c76937b97f7e936947960fb1c97597a414f3a9786f3694b048d14053ef29"
    }
  ],
  "blockNumber": "7,405,183"
}

{
  "Sr25519": "0x12d446c37463bbcb0bf387d2ecedadb4c4491c478466e383d50b71ce880b89304d0e4a6e3e9992a1490a7512ece960901af0168e77426435c8487572d33cd38b"
}