Extrinsic 51436-1

{
  "heartbeat": {
    "blockNumber": 51435,
    "sessionIndex": 857,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xfac80672641a93d73809a888d75202f6b4d69b38ad6f1370f1372f2cd0fccf0f6cee4ba8f30b159afe41dafba4847e1faec2cc746c22ab236d876ce6b7bda488"
}