Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,547,551",
      "signature": "0xae43b668c0bb6748c4bba972b64284161f1ab5d908b59b1de157d546886a01adbcbd2bbedc58d71788c61190a9872246",
      "randomness": "0x38319ab2016e192963c9d5871e325f38143cd7f546bda76e4843300f425feaec"
    }
  ],
  "blockNumber": "7,407,223"
}

{
  "Sr25519": "0x5a400019ca4c32f46795a8d4ebd85f1dbf74a83c939d5c86efb169f6c4c5c25c3e3b854f2b20f60dbdd1935e7aeb45eb88119ca21d2e6196c11819f8cdbeb080"
}