Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,637,335",
      "signature": "0x9961978922126be00504f637863a127eb73241e5587c9f2a024aff511bc1fe1dec3e25b0a12893ef715d918af490576c",
      "randomness": "0x30b5d2799851fefafaaf18c0d97879a9ee55d79b669d68d62d188da8a047e4c0"
    }
  ],
  "blockNumber": "7,429,648"
}

{
  "Sr25519": "0x9c77205fc05f3d3d9a00831c982bc0238fe4fb5928e535980e2a21c2cb59f352eed53674b5924eb3c8e1703076ff9c0e7f4e0e7bc9d652b30e454b4c02dbfc87"
}