Extrinsic 35489-1

{
  "heartbeat": {
    "blockNumber": 35487,
    "sessionIndex": 591,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x34cacf06dc5d5c9d00925f7f19895b298d2387bb6f3ac53dd5e2e7f111c3c858bb2a3021eca0373d0b07bfb0889f4b64c6b0f532a4f6a7a1d2fbfca572860b8b"
}