Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,606,589",
      "signature": "0x98d992ce43fb0257c8057bd01ee09624468e343a5ce56124d0a375c70f86f2caa3421502b0e51c43aeb0215535b90f53",
      "randomness": "0xac494626463fc2096ae5f65bf05c5c15841df0d83942302c88f4fdbb39866360"
    }
  ],
  "blockNumber": "7,421,964"
}

{
  "Sr25519": "0x1cd35f03b6c2ac5fe46c90e11600a6951ab6a085163934287c4071d1888bf77db68eee4fe6fab1f3b6377b43677171cc2132a7cf69df3cb78094f618cd64d688"
}