Extrinsic 5372-2

{
  "heartbeat": {
    "blockNumber": 5371,
    "sessionIndex": 89,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xce491440390c51fa5edb935ccaf06ac89b14f7874509c5c09adac6207df9b6448037ec4ea2f66faf85d7a178585d638141b9132a3a0330c64913283805b6c683"
}