Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,581,494",
      "signature": "0xb3f1ad5af6bc2bed30848e5f9eeb682a35bd0e55a3f0925f26caab0791e1aaf057229041cf3887d627529522a7b14672",
      "randomness": "0x130932ef797700726b1e0df62f4c91b942a7dab82c915866702eb433be72181f"
    }
  ],
  "blockNumber": "7,415,696"
}

{
  "Sr25519": "0xf01d30ec4165f3392a5c53c258e3b8c63582448fd49c2e035ef66d096b952224c8abac051a4b1cd5c6cf121143f44159e74a46b90f18d09b4855daedadefa084"
}