Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,537,612",
      "signature": "0xb39728048741201d7466bdd9e984ae98b6e01ce77cc724bacc6b75fbff6ff90d678608b514ce51fa86d0e0daae03cdcd",
      "randomness": "0xec30354170232984afb32c46838d7e46d3a9e5aaa435f4ad8d13ff2fae35a878"
    }
  ],
  "blockNumber": "7,404,738"
}

{
  "Sr25519": "0xfe29b53c0aa266ed5680e9b23cdcd673ac14d3cb872042feae9bf3e43cbb9a58d1dfc5dbcf80ea9448943a8820619051000a9f333e53e07a06f60c409e448388"
}