{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344838",
    "entityType": "User",
    "nonce": "0x00e9f11093d0d9940a9a325e3ea1b3e4ba980762eedcaa02e9a2ca43a46d5569",
    "signature": "0xa156d7c2e15ce9b0782f80460f4857fa86e2c7ecfbecb9a475f5d27cd9bece8c331f0e06fd07995b39c44d00cb311c6bf3ac311f363741d03e935aa844d1e9d21c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}