Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,552,811",
      "signature": "0xaf16ff44a4f50b724d22c14092077dadb62e74ba3392070cecc07a109a46e7bc362932f3f6d7a12f5e582c8204f436c8",
      "randomness": "0x62decffff2472f933bd48666432ac52f922543e0c2e3705c45c3411c6731b5e8"
    }
  ],
  "blockNumber": "7,408,538"
}

{
  "Sr25519": "0x748233a09ebb797cb34c2b3ad5ef37bc1644040af01a6c99638ab980c77fd460542fc4c803a969be9643f0928d86973e8045936ebd7c8d355406c2f691bd1282"
}