Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,574,216",
      "signature": "0xaa9b460e1e63a0fe4803831115bee76e1863619d0d8670ae36e083d44178090102cab5258a34320496e9e38236213ae2",
      "randomness": "0x1908172754dc4e351759e247159df211775598222cb4d713b96d31af1800d996"
    }
  ],
  "blockNumber": "7,413,889"
}

{
  "Sr25519": "0x1448d4e40e6de1ea7b178095c7c96552614d6b386d081b6955a8400de8e7af3e0027877fa0a01091f496fc862639fb1432624efbb8581fc57ce19348c125fa82"
}