{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x86332e296ba68141bbf07d58c911db4c85167e7288125c138d4e7f12234c522e",
    "signature": "0x2cba423efc4d16bb0549033645103992139410d0eb10e5ddd9568402377eff5947782a4c1129bc1851308bdbebbee6ae3f64f8721ebd948abc38cca6458f1b221b",
    "signer": "0x0D9B6615012b6bCADEfC6A20C42dc2080f8371A1",
    "userId": "421394482"
  }
}