Write Pulse

{
  "public": {
    "Sr25519": "0xfa823f5b350ce46a9d53f4f7d4365c0b2a20efc82c5c03394195ee166abb0137"
  },
  "pulses": [
    {
      "round": "25,543,848",
      "signature": "0xad7938b9d4c5e1610d13d74392f882833d6b8f236768641eeb758abd8256e831ec3093bdeca1baffcc0ccb8450cc3c4d",
      "randomness": "0x89f1d5129dc6e6480097fcb2c1f92df25f7ccd63ac5767992eef7b017120560e"
    }
  ],
  "blockNumber": "7,406,297"
}

{
  "Sr25519": "0x642e3e20534261901c12e767b59c2d9362701569b3884e6b42027c706b47e7541d0f72a16785cfbfe9d1c82fd62dc9f0e46392a28b1810ce6f615e13a6947184"
}