Write Pulse

{
  "public": {
    "Sr25519": "0xe4cfd1cbf31f6bfac188943a61e8e4d47aad1c362d00cfb56c5c8b83406fd04c"
  },
  "pulses": [
    {
      "round": "25,550,662",
      "signature": "0x90bfdf1bccf4e08ea7ba304c322af04b9f64701f1b4127a3a5d3cdb0a61501673be2c879f0a89d375f7de32130a7495f",
      "randomness": "0x128be41d818906d9867610efe98be4d03152633f03cc9e58092a03f567090677"
    }
  ],
  "blockNumber": "7,408,001"
}

{
  "Sr25519": "0x4e221dc914665c28628522dea721f6722c2b905e67259618ff227e26ca962f51d0a9df2b87d0a2965541ef35ad14ace704c8afc2bd50a070cfcb7e49f0105f85"
}