Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,547,850",
      "signature": "0x8c91cae61446ceb9878fac097b5cb95f21b20d581e0cebe4c2adf2463775a531078db925715546e41854d538194f2197",
      "randomness": "0x1891fcfbea5aa25cdb993902946a6428e39556484bbcda4765976a349b3d1d1f"
    }
  ],
  "blockNumber": "7,407,298"
}

{
  "Sr25519": "0x4a662b740aef1e72ffe625a81d772d69ed0907252837ddd39ecb07ee434009445ed49e183c3f6fab06e02572d8bfa0acf3694ecc81550948bad3ce27971d0f83"
}