Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,550,934",
      "signature": "0x84eddb056218393b0f81c295873e29932bf67c370147386730a52999af3750bf57f693cb0ebf46ed7aebc8187644c5e6",
      "randomness": "0xbf91f222bd69b7339a389caa3e5e3e5df58f458cd97ca548962989a858c62512"
    }
  ],
  "blockNumber": "7,408,069"
}

{
  "Sr25519": "0x7408a82077b70b45f95bfc8b8537496dd5f13627faa155bce196f76bfb68c92af1c679f7f661a500b7e7a0b2884b0257f37ccc79f1506e9e4b8ca34025cbe48e"
}