Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,556,911",
      "signature": "0xa0916872db9c55dcb2913ef43c541580e84dc28871a1b3868b37663a5bd0f7a4feb5c4728b61b644b0a7c5222a9f9543",
      "randomness": "0x5137defa85a613155ba248e92f65db218e535f848d2ed3694e1f663e27c30272"
    }
  ],
  "blockNumber": "7,409,563"
}

{
  "Sr25519": "0xa8758986757e9daf027ec2a76c885d6575bda6557a08fcb2b936ae59a9181615d65fb3eb301ec1d57457d0048b4843d60e8a75471964d5e4c37eb77abc24c68c"
}