Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,542,970",
      "signature": "0x890b381231c550cc5b08e7143358883ccca0de93c18155fd53d135f2dd0e6b2503a46514816fcdf8244ee982e1a624bc",
      "randomness": "0x5219e773812ba1068c5810e45440e70b524af2745d86fccad833e2c58ab9d595"
    }
  ],
  "blockNumber": "7,406,078"
}

{
  "Sr25519": "0x223c870a58687730b431fbaffd345ec1252eeb2115f6a7c67adcfbb343e0596940e0e455be03abfb5e37ba92083f6737190db06342898df2629b6d68245b708b"
}