{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6a24e66b930a6d94ed15bb7389772e56ee8f938e0b07ff26a208127653987eb",
    "signature": "0xd01671557a390b834a5ec279852fd307342c759c59caa767e1afd248fe0778012536a390b9f1956b0e2580ec511b8be41e38d647bbec5a854e5dfd5cef4a4f9e1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}