Extrinsic 37760-1

{
  "heartbeat": {
    "blockNumber": 37759,
    "sessionIndex": 629,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x68cd18398d9ae21f18d1c5bbd413320e7da285a880fdf60fbd44d65b7a23de15234ece22c824376a027fcbcd33beed424e2a08b3956c801d99ddbf8e6599be81"
}