Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,628,616",
      "signature": "0x8b6e99c50ec7cea5bf599aeaa2a99298c288d3f8a887414af897ed40ef7fde01f865be61915f900dce409ea0c44f5d5c",
      "randomness": "0x5418de4b14217d0122f45539ad9101be52b716b7c426d8b3a3331669de2d1230"
    }
  ],
  "blockNumber": "7,427,468"
}

{
  "Sr25519": "0x3c8e7de67aa8ee8fbafe19c9f29e40efbb76dcc66049f68b99f8d26ebf64087a123f3d80c66cddfcd5d0d952612fccaf52ddeda348bc877ce129bff9447e4c85"
}