{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54875",
    "entityType": "User",
    "nonce": "0x40eecd78853f09cfb51c966beeb1c28a97b79159d216dbc844bb7e254f00a02c",
    "signature": "0xaab08600d7f9a5bcdb9ce9a630f9d45c25347ee3b1da2edf9e151e320a195c4d3d44ce553af6819e88f875750a12b8995c82d477b73e35dfe9bdd09c837841131b",
    "signer": "0x8F9F8804043F4945168B53dDA49dC180fb66823D",
    "userId": "245359033"
  }
}