Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,569,734",
      "signature": "0xac813d8e8a14db04a65b4df6a7946645929579e8e12f033ca5fb73a23071d33d95396b3a9496d923c8f4716ff7858a4a",
      "randomness": "0x4c73d37305afbf896c969bd5ba01f61c4a25ee0b96de06e15eda462a39d545a1"
    }
  ],
  "blockNumber": "7,412,769"
}

{
  "Sr25519": "0x8cb3a0a6ea779f1c810e2a7a9ed3c245209a5cb5f9e633a42159021693d1806726afb9f98991e09e301bc4235b8ea4858159ecd001347b0800da3cc9d991c984"
}