Extrinsic 2895-1

{
  "heartbeat": {
    "blockNumber": 2892,
    "sessionIndex": 48,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x92f13680d075e68cf3a970edeb43ecc1d6fa8562ba02cd8c96823200e411ca4f643323714a2ad1306257d2c61014e6b7fe54f32acbe3f4476c07e6130e293781"
}