Extrinsic 31541-1

{
  "heartbeat": {
    "blockNumber": 31539,
    "sessionIndex": 525,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x5a48c69848ff6e08534cf011f46246cd6924b01bd5139df249d8ca5bc1b2e7064a12d63aa99ac70d4b0363cb564cb2071dd58450feeb001b900f61d0bee26480"
}