{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388927",
    "entityType": "User",
    "nonce": "0x49b994302787df430e0998778f72b2751d1a345717ef84e89567010ab61e7e0b",
    "signature": "0x10116a5bc93e8ccdc4138abf5dbb4004e11031956ed9c58e2bb5b5d6cb0296f25e1e820e53516bce9bb3bc7ff0a63fc4b03297517f4a22c720d6f982ed63f9da1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}