Write Pulse

{
  "public": {
    "Sr25519": "0xe4cfd1cbf31f6bfac188943a61e8e4d47aad1c362d00cfb56c5c8b83406fd04c"
  },
  "pulses": [
    {
      "round": "25,591,940",
      "signature": "0x8c2bfcbeb7b0dbc23da46028fc74de45484a0f11a68e626a350bb322497c023c2fa4575af4a415eca76da20c5319f20f",
      "randomness": "0xa08269eddf9660493a2d2df409b1be28dc6a88c394193038878dded6ceac6711"
    }
  ],
  "blockNumber": "7,418,308"
}

{
  "Sr25519": "0x30b09fd44c5025271827abc5ff7474bbb4bb8bea823afd51fd2230649878790374c8aeaa99a23084a646eebe6b0ec1dfc8e1a6bfb5802657230102d2625b6c88"
}