Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,601,496",
      "signature": "0xabda745561e5f636b95115923c880b73b86fa6d80a623761c57019d619641972c73987fd3aee30f8d0ce3275f1d3123b",
      "randomness": "0x78d48c85e4101713d933f7562acc496ba9b3727edf61046989fbd2fa770501f1"
    }
  ],
  "blockNumber": "7,420,690"
}

{
  "Sr25519": "0x0a0d761368e2415548c734960aee8b53c557e7b3b6fb0d95548de84400a369287c279b076114dbdaa46798424173ab4df2a30d76a16225fbdb6d656b687c4387"
}