Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,569,975",
      "signature": "0x940cf6d133c93b99d587b394ea425999a0fb56ab94e30369df4ac9997e1fe7a536d65b996f8ec1ec0a9d623e143265f4",
      "randomness": "0x8439a491678fd0e48c4153079900ee110e2710dfb210ab38c989a6043f5b0021"
    }
  ],
  "blockNumber": "7,412,829"
}

{
  "Sr25519": "0xe42768769cf1e1c280d603ee62403174e51c9830507bd15a2d6ded011a8ad860945ce177a13ae80132a534e2fdb89369f9353f9afac0ab27950f55206f62d281"
}