Extrinsic 24580-1

{
  "heartbeat": {
    "blockNumber": 24578,
    "sessionIndex": 409,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x8aec854aecf8e156d37ea6a33fe0d13f8fca40228d4b8af3065b910955222111e661e1a8e6d3f85db201b33bf4279fb586263fb1d5d2bdea015016aeaf4c728a"
}