Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,578,588",
      "signature": "0x98ea843e54be3580bf65e5fe8f3db67ab21a144951744f61798311c5f435607d188c087377a37eef18e89d149b591b7a",
      "randomness": "0xb7a72011fbbc93468ab8a107230ba1f735b68265bf13c787fcb71b38d29b1e5e"
    }
  ],
  "blockNumber": "7,414,983"
}

{
  "Sr25519": "0x383523531de97a5ed9298b515af6a35bb1fb493611dbe7a305dda07474a1675bbd899d467bab7e4a6034d69127764ff23d05f71d0092273223f49949448dd980"
}