Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,640,054",
      "signature": "0x8b66bc554e640a19b6a9ccab9fe72823c8951e0b747fd9e645e0e6d05da34b180239029663659b59264fd551539a1f61",
      "randomness": "0xa9c9e35926bba006d75e6f3b9e75e357a087d6b4e14aeed22bcac13f75353754"
    }
  ],
  "blockNumber": "7,430,328"
}

{
  "Sr25519": "0x08772dbe5907792d0e53282561d15366bbd83ccc0381490e05af404388858c522aa35b948ca69fab63ebc216d54752c3eeee15a9e108fcac486aef4bab4dbd89"
}