Write Pulse

{
  "public": {
    "Sr25519": "0xd478d73632aa403c1d145a6446ab7c757b277866647f17e47014fabfe9c24649"
  },
  "pulses": [
    {
      "round": "25,552,530",
      "signature": "0x89081aa648ab38cc14dab616a8ff2ae684318d8edfaee79ca45fffea5fd007bf268b8bf8dc637a3082ad1e10bfd5d080",
      "randomness": "0x168b51e78745038e007e1895c7c6cbb71a07ca889568a1938c7f67678422c4f7"
    }
  ],
  "blockNumber": "7,408,468"
}

{
  "Sr25519": "0x749923176f5cbe5e08dd69f64f2f9765215266fa2f4f937b9d8c5644e86d772f2c2b70c2f46b1cd1b82f97d20301e92cff39d0b0d0d6579f7191b21d09cfc48a"
}