Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,579,656",
      "signature": "0x994120a4703d7464f8a30b5395342d03e14bf5d99e0da7544dd7e4612f0fe9ef6d49f8e514864bd374f437c884f4b8a4",
      "randomness": "0x6f7595421d789dae8a3ffd528f4919c0249214da817d00b9b403f360cb881df4"
    }
  ],
  "blockNumber": "7,415,236"
}

{
  "Sr25519": "0x66e2a5d400c9efe4193b26916d286808956979ad4fcc6438e4a8f2c78a49544c044e9d77d8b516a1606c7b7afc854e1c599b8485130240234e5279ba305bc086"
}