Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,551,549",
      "signature": "0xb92ee53695482e661200e0c179fce7c753fd84a594a3a866b7832776e9fa27fb693f04ed5abef74fd2e5c6c080868e07",
      "randomness": "0xcc1e9c6bb73f392828419bc6e34a247439254c498bbc4f031234809ec38abcfb"
    }
  ],
  "blockNumber": "7,408,223"
}

{
  "Sr25519": "0x20414e607ad35a675512092a73c82fcf1fe6b904ab78ca9b421b659ccb803d1e2625459fb966a0ff6b98f91f54fb8e65a01541f65f129913da00b91f1349858a"
}