Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,560,132",
      "signature": "0x949108a5f4edbe8b3d29e2267a6bcd1da4c9ede0ebe693c1984a58e9c581f484052ca204f039c6ec925c1350cc65d5e8",
      "randomness": "0x9900119f75e72dd04431bbf116ec4c98801dec841d2e5dc8dc08df3dd2fb919c"
    }
  ],
  "blockNumber": "7,410,369"
}

{
  "Sr25519": "0x20d234f65e4b6fd0fe5e8e215834dbf49cc816a8d7128a3e47d00f33cfd6d119e8f7d0e52e841b7ca1e331ef07a223757c7e2d435f1f0cb705afde3ae5da6c8d"
}