Extrinsic 6968-1

{
  "heartbeat": {
    "blockNumber": 6966,
    "sessionIndex": 116,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xa295ce275c1fb39b7cb4df855ec81fe42fb87445a67081451f534f824e23940f53ba416485f53a92b915e027cc06b4fa9fc176cbd54af7187b70532f35ffb689"
}