Extrinsic 31690-1

{
  "heartbeat": {
    "blockNumber": 31688,
    "sessionIndex": 528,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x3695deeb4e72684fbcc2747be22abfad44dddc5ef6935745a25cfb676f0bbf33ccce551f4fbac18df08741a97ea3236e6cdf0288b39788274450d6da40339782"
}