Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,552,293",
      "signature": "0xa2d1f067cfe668ed1d50c1ae93f7a1989ca88e6174b93d11220994e87c36a89b8bc02398f78045b174b3d0d5ea22b98e",
      "randomness": "0xf5a4f02f9c88b4534cce6f752984a94ec1c5470264cde4f6c844e44395451c2c"
    }
  ],
  "blockNumber": "7,408,409"
}

{
  "Sr25519": "0xfc78e039e588faa199f6867606c5f5cc11f0b3f170b64f344841cbd4846d201e861f2a10042647bfcb70ce3aa7322e2e56dc6811bb3a54b7c8730f2f5316b680"
}