Write Pulse

{
  "public": {
    "Sr25519": "0xfa823f5b350ce46a9d53f4f7d4365c0b2a20efc82c5c03394195ee166abb0137"
  },
  "pulses": [
    {
      "round": "25,559,446",
      "signature": "0xa17c59ac8a676a70935d34bbad5c3bb6f5b3b3d8364162ff8f51b75747d0ed6ad566624d8e0cd1fd4524d6e896238d88",
      "randomness": "0x4d15df9a15acb856e12b82cd4035725e64f8a2f5ca678033ffbf0b39f5e8e56f"
    }
  ],
  "blockNumber": "7,410,197"
}

{
  "Sr25519": "0x90a215ee92dfd9fc8bb0062633e60fd6d9d7189462b98243f270268c3fb16b05bf149bf2a6b645c020d22e7f9278c896ce1ec78d7587253f02e94ded9517a684"
}