Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,603,815",
      "signature": "0x90eb4b464cbd5d5baa5c12404d5f192431b42881b4bbc48b247d46c8549c05421af1659d7478b9aa4abfac786f87f32c",
      "randomness": "0x7db956b4660adf1599df331e685241d65e530647d4158b352c86a11d66748967"
    }
  ],
  "blockNumber": "7,421,270"
}

{
  "Sr25519": "0x229b4af355ba06fa131bbcc1b7d6abd31f6b0b5a913de8bd1df6ad1111b4d20a9c5798e2e32be4591ba601d2d3b2fd77529f0228f8a6489ecf5808e05327bc8c"
}