Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,599,016",
      "signature": "0x9877ff3889d029cbdc2ac0ec328edab1862dd8dfac0d04515ca6e165f7ad40c0883fb2741d25684cb4ab354053a52983",
      "randomness": "0x833fcd05c85a8e3db063035eae9f80c04bf70ca29f02eaeea3ebea8e5f240733"
    }
  ],
  "blockNumber": "7,420,070"
}

{
  "Sr25519": "0xa2bcf8766d700a954314853b6cbd998eb62484151c2439a779fc7bd212c394463820a5ac4c0925d3712ad8ec7e332be657c435ef3f92eecda02ed8a75afcfd86"
}