{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa503d1f1b69f08e3ea04c786fecc75b645c056f1e0fd78179fbcf65ff043ea9c",
    "signature": "0x802e9601ced2c7e90417fd60b73d4a6c8ff4fd8d66f43cf73e599ff188e7b7194553f11ac238cbeba1d4c8403fc920f2ca6f759bc2ff68fa4fc185f6fc33bced1c",
    "signer": "0x5dDb7514dB99Cb75E7051C637989A70F1B49843C",
    "userId": "239704741"
  }
}