Extrinsic 46719-1

{
  "heartbeat": {
    "blockNumber": 46717,
    "sessionIndex": 778,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x96d60c8f463e19d986904bed0a658dcd44dd3af0aac041c2ef1cd78c7825301208aed7611cac6858952699fcf8252abcd98251197f8adbd6817f4073135ff981"
}