{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43309",
    "entityType": "User",
    "nonce": "0x804e13b4a4b6d334a2656fc65813ed1500785cba8c87573d814768e4d040c1be",
    "signature": "0x6def1d867d375f0854ae21a910c391018368db2df2fed5d0a1e7b934cbde39984b4ce5e912d15efe70be214178aa6a82b310371518a86b6a2799608ca3891a7f1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}