Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,557,949",
      "signature": "0xa8b1121d51f6ba6b4c470f242df823c494ec380110e374576178070ee9fb595564ad7e815061fc907bf9b18c7d8cfd2a",
      "randomness": "0x5f8d641e41b3b3145b70c5d6368bd4b4db28a90c68bbd19835fc58b5f223061a"
    }
  ],
  "blockNumber": "7,409,823"
}

{
  "Sr25519": "0x78a11606fead745a04da3ed2834346e53b1147465a096b8671e68949d356fb57ab67a8ea58c1faa4ef302af2d6dc788c14577039c7fbe86f11fd34d7e9afb88a"
}