{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x3a7fb539ba79a7f43a95cf5b7d3acdff0700b24feef38117930332befa614b56",
    "signature": "0xc06a3afc28ff0fa9f8ed07df874284bcb43fb0c81e341cd472da97063f960ed6472eeb8c932a917b0130bbfcf026d92c99dacadf623b978b8e986cc0c11c0d6e1c",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}