Extrinsic 17603-1

{
  "heartbeat": {
    "blockNumber": 17602,
    "sessionIndex": 293,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf285baaf5a04041db318ff4e8884463242756da922ee6d88e2899be56976bc7cb90eb1ec0e0a2558b24de05ed751ef65ab3e19a996abeb119080db9eb01f1180"
}