{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "698",
    "entityType": "User",
    "nonce": "0xfcd359d9849aebccae6308c6068da4715383ded96f1cd453c494a89209496f36",
    "signature": "0x884c6a0a7f7dbf195a5209905ea53b8e75006f09a3a59fe6615d5e1db1b4336912ff6c1a1f4fc2d78e85ed7cba7fae84b3057a3c0bc4b1a7c43f030ca3c557991b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}