Write Pulse

{
  "public": {
    "Sr25519": "0x1c7997818cda64bb7b0eff4726b379c86667f8a10ddb396bbac1374fc0049b76"
  },
  "pulses": [
    {
      "round": "25,578,751",
      "signature": "0xa87d6687b7e8220e40c8c504a30999fe4016770fab6a0c6b3802bb14c67765af9e2b243f9a735a44f08c831b5825a07b",
      "randomness": "0xcb8ed0d7b66603c6d4bf92695676ad1b7aa4ee3453c5ae9cd6996dc3d73fb5f4"
    }
  ],
  "blockNumber": "7,415,023"
}

{
  "Sr25519": "0x2e2eb311772f722979447994070e0c200ef003ee9ee27efa58b79fe53e399a6d7f46e3e2a8058f4a06e288db80355c311ca65a44e6cd9126c5226e59a3544d89"
}