Extrinsic 48464-1

{
  "heartbeat": {
    "blockNumber": 48463,
    "sessionIndex": 807,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xe82176ef645f24e5cbcee204fe68dc7ce870c9e7b71be4e011fc6f36ea1aaf0b49614158e00519d1ab48cfcd331f4f84921a64a0c51175a99901a666a1ff3782"
}