Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,545,469",
      "signature": "0x990d7ff12ffa350be34acf6b3076abee33e2cca100389524c7f0b24172ef60d67eb10fc079825d81744391e5246c532d",
      "randomness": "0x9312979b96eaeb004420fe312d0726857a168e16bca98390e781dd93769aa6fa"
    }
  ],
  "blockNumber": "7,406,703"
}

{
  "Sr25519": "0x9c598c40eb095b5cbaa76065c48765211b20cfd2f2e93f521cb98f7bf97dbb5a44d3dfe2227738c87ffbadc7c3958dbb0075aa6b3be396fa40872f5e2331e388"
}