Extrinsic 389748-1

{
  "heartbeat": {
    "blockNumber": 389747,
    "sessionIndex": 6495,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0e4b86ade6c64494d9f20ba4aca1b1d2750616e11d8dc105d5c1e735ea2a94286adbaee5f2962ba19618310d4edfb7d122b91fbc7281384b7aed58db2f4ae787"
}