Extrinsic 26260-1

{
  "heartbeat": {
    "blockNumber": 26258,
    "sessionIndex": 437,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xee8e179142179ae42cf039045ad3c79a3b9c14ee391ee2f08ee057fcdb676345b0edb546a8a374803a4a7a07dbae7ec664a982031e358d0974149efae78ae48d"
}