{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x37333f1594167891f73bc267b01b386b720485d5ff696e1fd79b9dc88b46c2e2",
    "signature": "0xb0acff23d904a867f00158010b0c668d355d00808745f6acc8b267848e5904733a0fd857eff9978cad80d851d2a455fa0d77772fbf085d2161cd2469986cab8d1b",
    "signer": "0x2Be8ea3420BB2d906154e74D87e5f73c9aB081D5",
    "userId": "25479888"
  }
}