Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,570,971",
      "signature": "0xab50a26672ece974cb6712101f8ad5d3c19c52bda76f17f0e6e91c1bdc1d3a67557693e8305467fa37f69019a943a617",
      "randomness": "0xc30a6e65b9eea6795b8a7523696c86c80dcec9d23dae9866d7232b97bf92db1f"
    }
  ],
  "blockNumber": "7,413,078"
}

{
  "Sr25519": "0xa2c068668cb9c3b1222ce1ea2307020fa1dc2d94682b083c97faaf0c2c361d2c3d197d4980b343ef3c5509d37033d1fbad1ed5dab7e390bbd757e28fe6b02686"
}