Extrinsic 128675-1

{
  "heartbeat": {
    "blockNumber": 128674,
    "sessionIndex": 2144,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x7225f4758234b06aa86a5e693578f62aa4d29b0121731835e404555b5821a73f19560d68a2be659c8b2860216cb20d5a5e05dbd3d6cb555245dd26de8e89168c"
}