{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x142e7e04e012fceb78d506c866447ef447db44364314d52adbca899a1e39b4a9",
    "signature": "0xba41d899c24060016fa11bde6694c38a61d142933da935175e736af1eaf293f978d3996701f5237e44c6d301b866d8707eb5f3a74e589e81cf411ce78a6a76281b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}