Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,552,989",
      "signature": "0xa72c5a61fb5d5ebf5bd06b8f87a86ac72f88836d2cdb8a6379f5052713e782213f6dd4ccb5e464fc255752f45f37a0f5",
      "randomness": "0xd2b274a78801328e979b886a6ae27e75221b3bc64dd476a6a10b6d12b618db74"
    }
  ],
  "blockNumber": "7,408,583"
}

{
  "Sr25519": "0x74767c2c5e92fc85e3332811865cc145948c4aea153a63f0b2ebb742fc742d59bd8b2abbdba389c07e76730be3660924200bf7208b735cf7f459123a2227af8b"
}