Extrinsic 75718-1

{
  "heartbeat": {
    "blockNumber": 75717,
    "sessionIndex": 1261,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xd6b095f4382541543a85341f5636b6487a4ff7a5e79ef245bf682b9881efa10453c1aa47c3ad039d5cbd6426290c50df735058b279218d21ad66d9cc24da5a86"
}