Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,552,134",
      "signature": "0xb53d12295820718ea12c1a6215b08e0b912c40387747b1c029044d9289af4355b885fe755114c651f14dcf3490e5873d",
      "randomness": "0x0af1d884baf05eadc2c5e3358f55b0d2527a13b359d53ef1bceba74ad981930e"
    }
  ],
  "blockNumber": "7,408,369"
}

{
  "Sr25519": "0x149a9bf67147764b7486e9a959f014fc0e22ed50da0a8f49e091d2f15d1556088ba22aaa1ed4e5cfe4016a442f58759b99f5d8e694a80128f8359fa28a35528d"
}