Extrinsic 9645-1

{
  "heartbeat": {
    "blockNumber": 9644,
    "sessionIndex": 160,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x14d657aea75bb81b5e98aa37ff07b0559a3f383defb8b7265faf6f3a710b0f360d6233800ca061257ff78b387f10ea21d8203fd14c680cc690951d62c571d089"
}