Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,567,150",
      "signature": "0xa9d2d2b6175825ac68779fdfe3f4512dca71f7804cf3465cea8db4e0f4c671a64c62b2dd0804f690be9124703c6af7e4",
      "randomness": "0x7b3bb6401f57f3d9532a46d16c60775e2d65f1f7dcf60aedc6effbd352ec249d"
    }
  ],
  "blockNumber": "7,412,123"
}

{
  "Sr25519": "0x840303b64207a4071444737dfbe80b8537ed71e290f41bb4cbfc8e54c277652f2f7eda40adbf0097328415a3d0431bfbe4973b8ad2e197bfad726ffb3932b08d"
}