Extrinsic 174940-1

{
  "heartbeat": {
    "blockNumber": 174939,
    "sessionIndex": 2915,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x5cc403f0eebb09c068a61fd68df7179a5dcd05f19e26234c9ca3eed6fb6e012bfd22d6f45daf53c1dabb785c9d06417c764460a55233d3bed4bc46a19f64ce86"
}