Extrinsic 51946-1

{
  "heartbeat": {
    "blockNumber": 51945,
    "sessionIndex": 865,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x8a750fa5f1e6bae0f0a1df62cb9be6ed7f7a78ada0be763cc7a0eacca536222e5765395bd5f16a9b3a5cee25505c6be1984d392fb612d78627f0f84b005c9488"
}