Extrinsic 137120-1

{
  "heartbeat": {
    "blockNumber": 137119,
    "sessionIndex": 2285,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xba15103e4713b42f2b8f3da0ce33942dc60847e2287b70bc5b212697c63b091e895a53f9eb32f3ad87a2645c77eebcae1044aa54f24196126eb20bfb8864268f"
}