Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,598,614",
      "signature": "0xa57d78d5071b1a363f9867c535bf0d0dda784cbf3f9501591e5802599c94fe221016df275b057df6f99e3f3163e75bd8",
      "randomness": "0x806d7107b6cf75252a1c61e04c04b96f8c6a4cd17b856ca264dbc300adc08541"
    }
  ],
  "blockNumber": "7,419,970"
}

{
  "Sr25519": "0x08f9f537f13c538be501c52ce00f75f3e80794782f0bf3a37ede45c86efe461b0a6606d07e2699d4f48de1c8babcbdff5d5889dbe8c34bbe306598ad37892f89"
}