Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,542,534",
      "signature": "0x85251c800d0e69ce4ff8cfabc2bad4813a650102a02287130338ca4569bfcb9b4e1c58b7b9f124c373cd3e167870c59d",
      "randomness": "0x498f9959ca8d47402aec5d01977deaa41fb12afd8016100d65c2649d82effab6"
    }
  ],
  "blockNumber": "7,405,969"
}

{
  "Sr25519": "0x66c0fa0f7998380e854a27405c6a8d9639cad3c265d9787701baffce1a98036c4c49fadc1b6ffaf018318618bcb7948619a71b268b9646d795a9af4c1ba1938b"
}