Extrinsic 6188-1

{
  "heartbeat": {
    "blockNumber": 6186,
    "sessionIndex": 103,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x26fb713e0fb0661657b039cde0547b2f751d8667df391548d007da5c26d6333cf6afc4ad8b50648d7d5bd4aa711b0b4cc55e072ad454bf806174e5e9c5db7386"
}