Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,658,293",
      "signature": "0x8e9bde14dfd460f5f60b4079887d3161ebf23ffdc63364e33550fb069c2f48737c294682fe116cf8623fbb36be6011eb",
      "randomness": "0x030deced9e206b87797e9ae8bbd3939eac71e726dd79180586517304d609d0f5"
    }
  ],
  "blockNumber": "7,434,878"
}

{
  "Sr25519": "0x8ca20262100000a5f744d4d84705810e420ee3f32f48aed3a40d3e027d147f4a7168eef50d3d3f5a359b911120eb8a8122636a04f8d01154eae5517445a8a288"
}