Extrinsic 175425-1

{
  "heartbeat": {
    "blockNumber": 175424,
    "sessionIndex": 2923,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x1c243513f95989cf502c99a0b421c97d33a8192da2910eeec459c7b6e1e09f5a368be07e26f2c59c3d24d2b0e6f52226e85516cbf0d71364a723065f7cf46082"
}