Extrinsic 78492-1

{
  "heartbeat": {
    "blockNumber": 78491,
    "sessionIndex": 1308,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x14b243214af6be91287714595e4978f1a9c66f45a9240f8a5ce324bcdfe8a31cd98715203d6f8d83ba4835b0353d86e0c96fa7dc15c9aa097d3e45cd08de3587"
}