Extrinsic 25630-2

{
  "heartbeat": {
    "blockNumber": 25628,
    "sessionIndex": 427,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x1407fde39c5bdf1746d4aab6dac611683512f49ea8e48e61b31e8ebdec00f234ede9b340bb920c6912572797ccf139b8f57b1fca091ac17161b910d353d41981"
}