Extrinsic 419055-1

{
  "heartbeat": {
    "blockNumber": 419054,
    "sessionIndex": 6984,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x7c1cb624d3c4d05ee501fa24c7045e67dc9d28bbaff5fa325dae510b4b7dac61e797e65faf4c93cb1da73b554f35badd443931ed11bbf9903f3bc140028fad84"
}