Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,552,490",
      "signature": "0x81c7bcf346d37e608dfd6a90bb76ebe3f84bb8d15d18022b8167bdf0e6aa084cbf8c6e67504c75f89b702cff4178b1e2",
      "randomness": "0x83d2f2790b2f439a06c3a4d57f5d544a5badc9cfe9d72f262d04827a165be47b"
    }
  ],
  "blockNumber": "7,408,458"
}

{
  "Sr25519": "0x0ce7cffaa76bbe07c15e285d1a89f553ed00bc5fdda1545752f5de834f39e0275abba35fb65e61f1d51998c628d0c3022c84995cfefed16c400456458dd71e8e"
}