Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,551,974",
      "signature": "0xb9bcd004abc5b673a3ce5874aba0db25000cd26a1ececa6579accfd0a513be76dcba7f374d9a4b6c466647f3fdd1a68e",
      "randomness": "0xfef67d31f13f0b8a42f9680f1839a915fb5633d21868cfbe8f943e8dd5e50d71"
    }
  ],
  "blockNumber": "7,408,329"
}

{
  "Sr25519": "0x685323ce2fdc057c6e32a2d71aaaa6caad0a02b4c56e0d7cf128371ed5bc0d203862ff612bc9712662a11fda133232a92775fa39cc47705ee745e08c354ca389"
}