{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "502004098",
    "entityType": "User",
    "nonce": "0x076b805388f0c162e3f20affc1fab45e9b092592c3fdfd89afdfc77ef522cd6c",
    "signature": "0x2fa2923b1787ed2568679af3385e539261ac810c4b8e5460afff519b3ccb1c750d03661a476fc06cba031c7806673e527b2984c31a4e599d2921b72135dc71481b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}