{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302338",
    "entityType": "User",
    "nonce": "0x320aad5a037db10688fbd58dff8356c312faf6f8f90583436ed120d784c7a0c9",
    "signature": "0xcf0f03c94990d72bfb254809b85f3c1890e5f75ed05870bba2e785cb5d089bbd20168c1403b02470e2e46c27a1a7b118336f20d695e8c0d89b4ceae0fecb66801c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}