Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,543,550",
      "signature": "0xa77851c790ed27639f079d3b311f2759f7f193e253eabf226e5767dc3c6f4e80f81f312b86b87abd6d7b3ff531eff0f4",
      "randomness": "0xfc8d7acd936c1ab5bd5a6b0593ab1902f0eb1c612b4e8792166754abc1bd13bb"
    }
  ],
  "blockNumber": "7,406,223"
}

{
  "Sr25519": "0xf6b921f9c9e217680a25881a4b0eabb36c4971e4dea718337a4882f613c0fa2be2698a8a4ed22c319f0daf1889e1cb04110f17d47ed9a7badc130cf6128e7682"
}