{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328416",
    "entityType": "User",
    "nonce": "0x5862d8e65ce6ff5b9b4f1e08083b15cdf176efcc47aac314b5667c20aa4a6c33",
    "signature": "0x722662d7bce9d6ffdff67f46bd01d9d31bf78558cbe0702cc7e9e9d31820c6d4365e1fdf9ebe80475bbae9a70e57609a22762eeb0d9baecb3c69d169319139dd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}