Extrinsic 22217-1

{
  "heartbeat": {
    "blockNumber": 22216,
    "sessionIndex": 370,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x72f97b74c1a5ef5165eba45901c8660d6f057dcc38e5c139a20e19b470713e7c93720b4840e1ae791bc4f1e0eedfc6e885092be819efc355cf37deea7772dd8b"
}