Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,657,052",
      "signature": "0x8bef8839d64946142e02f50e6576b327b3806c8fee881d172fba729fed403c52de669674249ec5152ef42d4cbf9561d7",
      "randomness": "0x4425dd77dd77da9dc67692d6a6dcb0f7f9799e4f0261124b71fc47d52a14536b"
    }
  ],
  "blockNumber": "7,434,567"
}

{
  "Sr25519": "0x1c457cb098ac7ec0213cc97a488f6918e708e3fc1d8243d34d8b0f123d81762cdea9f078018681913144a0b1cdec2c104ffc53efa3dff85107ecdb6746c6d189"
}