{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222",
    "entityType": "User",
    "nonce": "0x1429a90acde8c14679875076cf272fba86ebc79d37650a2dd0a3026ecf8a11f0",
    "signature": "0x7f6924bb6862f02a30b1db276a0d0dd2677871e1597659145295910d1f6cc0dc4360f012b9aaa1a8daf16ac3e9509ab76d4e3dd85447399b20f3bedb9868c4541c",
    "signer": "0x195d9eE11400245E841C02c4b4288a90A8195e91",
    "userId": "103785872"
  }
}