Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,551,689",
      "signature": "0xb2fab9490ccca72ed14d778c3eaed95d0ea184ee41d9100afc510f56a04b796294a054d0592a57774f95c89e84b10c23",
      "randomness": "0x078675431e78626438ef3251214e2d9ecb7869b8c2337556498e6ccbf38c21ae"
    }
  ],
  "blockNumber": "7,408,258"
}

{
  "Sr25519": "0xc69cdeff0a28267d1e065c720862f5aec9212aa3dac03a45a38e6d934cf15967195305d0191eb1fa09c38b26fdcd29df0b5d4e3e64479d8f6226897ab14a9482"
}