Write Pulse

{
  "public": {
    "Sr25519": "0x9204c197905af474c1edfc5ae3e8263dcf53746156df77c73741daa0d5a08145"
  },
  "pulses": [
    {
      "round": "25,558,571",
      "signature": "0xb9ec9bee2f943acaac9b25a561a14c190fe65086af68fd9d5cca7646d3f9dc1c09407c06839ce4c59225e876f0aed909",
      "randomness": "0x638191be228e35f2a41274b2006fcbde6b315fdab98784dba72f119baffcc73d"
    }
  ],
  "blockNumber": "7,409,978"
}

{
  "Sr25519": "0x9a6fa14b80d0c96bda7f2718d8f9905a4ea956d799d3f0af8835f3e82bd6c40c9bfcf284c262a8ca9ddb08c7465bd33d10d641fff594c6877d8f98b748272d87"
}