Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,621,653",
      "signature": "0xa0861e578699f382d14634e5d01821a134deebbe3036d15b8bbc78ee8ada7f3c800cfad53fb8b325e6547d418f8dc5c2",
      "randomness": "0x425c67f456554213b67c57d2db8f65f69eb4cdd12d44671f2e199df654949cba"
    }
  ],
  "blockNumber": "7,425,728"
}

{
  "Sr25519": "0x78ed91c96a24a5910f60c3a6f2a703950cd30f9920fb388fe108785d1949406374ad192905d11898163ca9f2b14911f8fc9cc7558bf359b52fbb6e15cf28fc82"
}