Extrinsic 27396-1

{
  "heartbeat": {
    "blockNumber": 27394,
    "sessionIndex": 456,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x9ac4f4130df0958a80e990fc7378d96298059401fcccb7dddc8c60721aafe4152072c353e6df84ede018d8039322cdac0f886a74ccb96e2cfbe4143c95b2bc8a"
}