Extrinsic 137505-1

{
  "heartbeat": {
    "blockNumber": 137504,
    "sessionIndex": 2291,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x342f456aa173e279cb809496877a8628f640dd84d2799dd664ade6436b5bd54b9c359899af451c1a272dd5d87f65050fa3037558029e0b4408f847cb0f5d298c"
}