Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,550,251",
      "signature": "0xa78ee86d54cbf27bc6d2b43bc3a83658cdfb526bf96ed96da05448237d6a48e939e8a2026a20d0ccbf9e75aeb7ae05f1",
      "randomness": "0x1fc23b66f7ac840200b9108e8c0a6c52bef3459cd394ba2f8d54e77717fd341a"
    }
  ],
  "blockNumber": "7,407,898"
}

{
  "Sr25519": "0x28de7ecffa545500d58866386375e7813be8e9077d06d77314f28f52cc4b6004363787028d0b02ca4d79dea6350538220a6a82b3c777c281bfd7935e959bf88d"
}