Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,598,616",
      "signature": "0x8a4691615343994408311ef7bf5621d9a4e80f96f3c1bf1262057bf503e67c50b932a217d3d61428bd12b7aa36d63d99",
      "randomness": "0x8c6921e6b115c193ce46d865cd0244181ac1791f5fad4c033f62762ce547584c"
    }
  ],
  "blockNumber": "7,419,970"
}

{
  "Sr25519": "0xb65e7898a3059bcaff5068dfacef74612050652b65cb13021aef9dc44e45b2213ad1cd155c3b2c82d38bbfe9461acb90ec168015880f9ae761d4cc4bdc5f6d89"
}