Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,603,229",
      "signature": "0xb0b12db9c141dbd874c1987562b527ba13e7cc40e886a9e4a246d1f46868250d92e6dd40c4344e20ff4232851f8c6fed",
      "randomness": "0xab8662bd120406d0194936711d8964a891177900a0a759e9661c52897fc37860"
    }
  ],
  "blockNumber": "7,421,124"
}

{
  "Sr25519": "0x42b8cac41f5882b7def41fad49dd490872cff4a18b6d920705bc29ad42c3875ad0a9627f06f096ca65bb0413f6f2bf3c627868e3153d74edf5af4d7ea2be2a8b"
}