Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,574,330",
      "signature": "0xb9688a8cf3a1a337d807c370ac9cdce2444f3e859969b98cf66be2ffe3e501cb0950bb85cac378080b8486751be0a022",
      "randomness": "0xeef1ecbea1960d631740812d94dd954ed23af20d4bd1380578d45f687240f382"
    }
  ],
  "blockNumber": "7,413,918"
}

{
  "Sr25519": "0xfe8fb7bae37ecc872a950c6b43554797db159b3653463736cb291acb2b368b78c6249b22562c2186f91e03f10aca3c6e464e1f52fb7634dcb81ae9838904cc89"
}