{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17520",
    "entityType": "User",
    "nonce": "0x0ef8a4e08b982bda12c76bb38b02798ec242a2311f9fd827efbb5008debc16ec",
    "signature": "0xe417c8e3937a36a18ee9b91fce0dbabcfb87d7e11c989795bccdf2ada93b5ec0421eb1394654bb7d1d5f5c9c0fa9db368e43741d00ec5ff524436fa9941726921c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}