{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae6d2f350bf45a1ef6681bdc58757892b723984c3dbadc70add6d94f213403bc",
    "signature": "0xe8154e0f4553d8d08ca7e9aca206616f36866c04a2787fec9039fb1d442433d465f58b70399820ce5fe809dc39e3c7bd79e5340a57c23193da233b0740e345691c",
    "signer": "0xdFB9866e659412DE3d5Ec4011195e85BB269c1E4",
    "userId": "486631378"
  }
}