Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,649,812",
      "signature": "0xb8bc6f851bce57dfca19a8f80c00b7f0aa3fff86a0610a1e41b5932272e21a7e98236dfbb9f03c9fd29e12fefb5a43d1",
      "randomness": "0x8fa420ada65e5ac707df3bb78f3ff81c0d4021d92d918d903a158a8c052e6e5f"
    }
  ],
  "blockNumber": "7,432,758"
}

{
  "Sr25519": "0xec9eb13948e0b9d9b65132e95bfc2607b10259735d29c0f6a8d0fc7f328d1a5f22e1cc3c234651b008e2641f30b000b446ffa19a79d58f291c161c0706483b8c"
}