Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,552,591",
      "signature": "0x8306b7c7adaf57d520400bbf8afbe5b53b39bc10d7b06171d6f2c77c73180eb4f1ddc0ce0715edd0bc02b480d14659fd",
      "randomness": "0xbfe6d8f440700b271e66bf4d8f7a5d04fbc8a4994d555bba38fd442891156646"
    }
  ],
  "blockNumber": "7,408,483"
}

{
  "Sr25519": "0x662d4a88b7c80ce84f90cddc58ebda6a0819df55ca91f9d3b682c5ecb289954689b0a5de524906ca0842159bb7444344104b5901485ec5d99620f44390fcce8e"
}