Extrinsic 23407-1

{
  "heartbeat": {
    "blockNumber": 23406,
    "sessionIndex": 390,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x1e2fa5cc83eaad4782173e6ebc051e3e56734f81c5eca9a4415ea82819838619a50e66eb9b787e17f63d47e693f7fa5bdb9d23530a79f33c534e1e3fa01a468a"
}