Extrinsic 3794-1

{
  "heartbeat": {
    "blockNumber": 3792,
    "sessionIndex": 63,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x60671cb3b6782e7c4def9c91af82fb5808785196634bf7530b263aaefb664f5134ec11bf79cf06da7777251efa56cc41b26c36d770ec2d52945aa273985f0580"
}