Extrinsic 54144-1

{
  "heartbeat": {
    "blockNumber": 54143,
    "sessionIndex": 902,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x3eaae20fb4940e4e601d123a117883e4734ff84dcd350082287e8fbb7f21d14d00f5ce9326eec390fbc4226ce1c234eadb10de8ec8cec0c323f84aab8e005985"
}