Extrinsic 2776-1

{
  "heartbeat": {
    "blockNumber": 2775,
    "sessionIndex": 46,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x00dff08295e9d639266d7b615ae597b8582440d473d86d3b3989f63b001ac0775f50e4e61138fb6657b5935285b043ae2e8767db4d1d5001af066acc527d3e8a"
}