Write Pulse

{
  "public": {
    "Sr25519": "0xe4cfd1cbf31f6bfac188943a61e8e4d47aad1c362d00cfb56c5c8b83406fd04c"
  },
  "pulses": [
    {
      "round": "25,551,863",
      "signature": "0xb51ad1de3bf4752e64dc0c2d3708d13cb9b4afd6a1db4ee911d50e5d281a121252e5800a0c89b9cf84e98f5521e02a8b",
      "randomness": "0x392ebaf4d451e6b3eee0d089380cbebf45eb1e58b2891afaf62f313a959605c2"
    }
  ],
  "blockNumber": "7,408,301"
}

{
  "Sr25519": "0xde781597f6af8f0d643317f765bc6d736353b96b6895e61ab3526b9d1c4d3a5966d47ea5f604876c9206c31ccb6d06eb83842c48e95a4d943f9a73054d760e88"
}