Extrinsic 37051-2

{
  "heartbeat": {
    "blockNumber": 37050,
    "sessionIndex": 617,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xb23300c791361087b8e9db96675a0ab92d2eae07a73b9975c5cf46af377898006785bb61c8a07563d8d159b90f04906f96d4d68138c867799151fc729e85398a"
}