Extrinsic 174568-1

{
  "heartbeat": {
    "blockNumber": 174566,
    "sessionIndex": 2909,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x3cb048a7868a25bc033ab5c23443f5e22737ef25edc0d9fdb96007b881745574c008dc7451c1cb4fe5353f3d22b2c0a86d5481b76678db9e8b724c6b64280383"
}