Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,602,268",
      "signature": "0x8f1b9addd23a2b9bffbfe3355e64e54b11974dc1fc28403a99747a5fdb0164600bc8e8fcd888446d5b2226d51a5d5fb8",
      "randomness": "0xa258a3a22b3235aa793c01f48e2e855598f9ffeab42c93df5cbf40070098fbfb"
    }
  ],
  "blockNumber": "7,420,884"
}

{
  "Sr25519": "0x8cbb57555a153f4b3243d5958ae9793d98560c5c03c4ab8128be09453147c2777a3671c678ceb6170b2b013c994403993d1668ae670f9692468b28aa3fbfdd82"
}