Write Pulse

{
  "public": {
    "Sr25519": "0xe4cfd1cbf31f6bfac188943a61e8e4d47aad1c362d00cfb56c5c8b83406fd04c"
  },
  "pulses": [
    {
      "round": "25,554,020",
      "signature": "0x850bf74acd3fe47a736eea0b2cadb01ca550a73381ac8491f681ada6202dbca74211333494ca345c38b83888472b27af",
      "randomness": "0x90892029b54984196969a1528a710f3ade9117b01ff4e8912a5fb7ed2747cb31"
    }
  ],
  "blockNumber": "7,408,841"
}

{
  "Sr25519": "0xb016218c3858d93cf6d751d9d67c39e29bb4d5758c5a6af86889c9861ea4b74ca31971d6a102047274fdfd5c21124413da613a1c84a515cc2336c7369cfc6c88"
}