Extrinsic 149623-1

{
  "heartbeat": {
    "blockNumber": 149621,
    "sessionIndex": 2493,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf87fa4d8462434c1a0cee94f0ba30371c768318f24c653c2a1051171010c4020da0f80ca938a6adaad6313b36b786e1f8bcc05cb9d2dd067ba6ff6c7aef80d8a"
}