{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcea29fe6264f9d2568f59824762851fb353f42f73b1aedbadf5ebb0a86f71e50",
    "signature": "0xc0ddf3ba1a01ffe3c70435dce54388330119c1207f5a7f3d2484b0ee6ddd76f84eeb1d9e4028025617fed54a8fa6bb8c9a880aa621cd7805eb64ff79f19b74531c",
    "signer": "0xc79a1DA24AE71efAFD84c659445689515958FFB3",
    "userId": "633674723"
  }
}