Extrinsic 77262-1

{
  "heartbeat": {
    "blockNumber": 77261,
    "sessionIndex": 1287,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xea8dbd9f0b4c6bc9305e53eebb46573ac72de25737ef4d40f8a582c9532f1a17ba03d67870680931ebd2a69e7b123d995f71557f5d59156a0f58e58279e26186"
}