Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,615,550",
      "signature": "0x960670e6ae1a1252b3f6c89d9d2c701813b396af8fbb3d3b58c16fdc502fd54a0853393f2fc75389509d5a253fd01492",
      "randomness": "0xac958c0a4e33c0427f26ddb3eb6ffb2bc8e09fd7cdd7c5b2d97e13379d1f6b41"
    }
  ],
  "blockNumber": "7,424,203"
}

{
  "Sr25519": "0xb84e02e65dec58d0d9df46438357c3430a3dfef1c24a667c5c6811ed940ac06715a0846ecb3a2d28375870133b90a607f2c27cbe0dc9984edc7add537fe3738f"
}