Extrinsic 14448-1

{
  "heartbeat": {
    "blockNumber": 14446,
    "sessionIndex": 240,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x22b59cf738fddda46a3fcc26b0e02aa3a57a401a69806cfcddab4f08989c063ce0c22e4dc520647e774cea56ea42e7e18de7857b2ceca2a1b4ae22a4c5388d8d"
}