Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,548,351",
      "signature": "0xb1bc704b1405c1ff68d63d8806d7144be278d6a3b47dfa56e96fd39213e4b3e0ce216b9c1f4e780c0ee7b80d18dea8f7",
      "randomness": "0x857dc18fd67deaf050082b7d2d40299f25a3c6d84cdf389d4021b00477aef6f1"
    }
  ],
  "blockNumber": "7,407,423"
}

{
  "Sr25519": "0x6edebc394843e9afa289783bd0d38523225d2d9e8d060203bf77d217e8f46945b0d409d5260603fd0680ad78a5eaeba6cf21caeadd205de6db3888f2b6752f88"
}