Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,552,190",
      "signature": "0x8dbcd42aa1fd803c4f8b144c36fe58a714b914510410bf3633037585c457aea01ea773bd671c0172b234668e3349c719",
      "randomness": "0xa29356f9f3042be697c10374e0422d49125a23b2d73400aa3664ed4b7b835b43"
    }
  ],
  "blockNumber": "7,408,383"
}

{
  "Sr25519": "0x30641686c5e11f5e812e40795ff41de00aa241ebc43ea50a49b34b68622be517bd07909ee8475dfc1b9675546704720fedc6966edf9ff4afc98a8a5639764386"
}