Write Pulse

{
  "public": {
    "Sr25519": "0x1a005e90a3e6a3dfe9288ab1201eb4b95be88b5ac1b18cd1f8a8eaefceef094a"
  },
  "pulses": [
    {
      "round": "25,552,136",
      "signature": "0x8ca6bb654896d73ead9a3dd1e600a46c2fd694d0dc454450747e2a3bd9d73808debbc397190152d26dc1df88f6f4d4b4",
      "randomness": "0x72af2c8aad2fb2432e6743c18dd09e6549355f28f3f5488320d9698e9cb45974"
    }
  ],
  "blockNumber": "7,408,369"
}

{
  "Sr25519": "0xc63f8ae917af1690595086f48113046c5482ce462b6aba9840d9eec7f1e253100432f3462f09f9ca537cafd1851b9d90c463535b98d9ea1cefe34e7ba2fa1583"
}