Extrinsic 144497-1

{
  "heartbeat": {
    "blockNumber": 144495,
    "sessionIndex": 2408,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xbca574f210495ad1b301215849a2622e68cb2dfd173a6467ac3d397c70718f4b5d548da32c89d696737a8e34878a2985baf6ba172e5fa8d27c06abece61c0288"
}