Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,655,896",
      "signature": "0x88bfa44cc883b2d965694adce4c6ac28c419d388edd6a223e70e89792709553cc1044a82362a483150bbbe99a715149e",
      "randomness": "0xf4b717aa4c4542ce89d1de69b0d9f1569330d5834f384d06d6909786c456a5cc"
    }
  ],
  "blockNumber": "7,434,278"
}

{
  "Sr25519": "0x6ab60e3185e0effc848f69526dd65283257762c40e3bdb2c551f9156e1abc94554ea17fcdf566db19378022fbcf245c8b1d22f668e029728f538ff024bc0ad86"
}