Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,549,390",
      "signature": "0xb492778649f6fc19ec8794cb9c6fab3101a5f08b18b8fd676adc474e8b9f90ea6bdedee822f0a79f303d3183d20791a1",
      "randomness": "0x623f53e0c0d6fc7e550312f33575015062aba4e631fdd528e0e118b440c00538"
    }
  ],
  "blockNumber": "7,407,683"
}

{
  "Sr25519": "0x72dcf14c23a6dd41090e3950e6b44a44f279bd9005e461f6c329f4e0caa55a5f8e676ea3e2fa77ce563e47d5b1f7d693caa5dbb6f2b7254a4f25e0cb4edaab87"
}