{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863115",
    "entityType": "User",
    "nonce": "0x8108fea76d2e29a66cf68bffe8d6f58747a4a30993782fe40d215c6790e3d7e4",
    "signature": "0x4b0d803967d36215911f77892f36015e820fb1b5e7f7ac5ecdde402b577c9f3153ae3bf0a0b183fb94c096dd23f182a5992a89bd094ec520e2a2111645e429f31b",
    "signer": "0x49368dB15B9A78dF090195AD4338818bfA70C88A",
    "userId": "381576190"
  }
}