{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa70c34b66d78cacffacaf8332589c3f095139570c82041dc047070be9b48ba2c",
    "signature": "0xaaa5cee7e1e41473ef8841097306a28b500c8c3cd904c0ae6362eedc98cfed47133c738e3dd20ad7e53f5665e0d07b8257a1be2e64d5177888469df4cabfa4081c",
    "signer": "0xce0c9C40e8bAf81Dfe84A8a6c556f0832b0b992D",
    "userId": "153487043"
  }
}