{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x2533bd1f0590a37022695b0e21fdb4eef1623338e0653e88e6882a4e5daec356",
    "signature": "0x44edb9d691f6874a2a0a62ef833e53a81669001260990ab489bc6a006f608411755ab7268099360a8000ebe2e229b4678ddc2923a300635acb8f862dcc6721001c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}