Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,552,651",
      "signature": "0xb1ffb3ac7b348bff6b90dd8a958d20f2194ca90fff4fd21ab589fabe8666e7ea2fdb1936b2723618069e06db2be41783",
      "randomness": "0x4eee49ba4806640d88746aa8043003282d92081d46804c19a523656e8a2dfb93"
    }
  ],
  "blockNumber": "7,408,498"
}

{
  "Sr25519": "0x083afe0222ff8d55a3d6382bb36c59b20fedee4402bbfb6932a80c075583d37bbe927b66032f07c2dd19745a163c605adbe471bf713bac8e3b3bc2728c8f798a"
}