Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,602,294",
      "signature": "0xa9b6ff40ad3e03e69e8729d9ae7ddc153b9e3b379c77d8643d597bb182bcf6abb45f37d0ff8bf659cfe940f9ccafef0d",
      "randomness": "0x0b04c202c63f96d9047ee1e50f44e1d26a9a0f4410fa3d900e27071256ab53d5"
    }
  ],
  "blockNumber": "7,420,890"
}

{
  "Sr25519": "0xa2d7cc483fc5974f3aa1040635eb20d1483690c9b32dc4e79216d095df07a025607513152f6684d3aee3d6075ec6deae45c8e169d4baffa9e527dec3aa1b6e80"
}