Extrinsic 25426-1

{
  "heartbeat": {
    "blockNumber": 25425,
    "sessionIndex": 423,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xd088f9100442000b81f3d297383020be583c3ba4f315c882fce07919caabcc24ccf70d8e9703ce13bfe684cb0b76676ee497d0767e3700215acf14063318f587"
}