Extrinsic 37351-1

{
  "heartbeat": {
    "blockNumber": 37349,
    "sessionIndex": 622,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x2e7663cf6c35a9089b0ae81be58dfed54afdace59670cdfe7373c3bbd3ba415cb6931149a6114e25f30f995861dee5890400179ad3aacea101e6b1050e325483"
}