{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7b869118b0636bb99029674fc08377962a3d9ef1d30539a211e005750e47aa66",
    "signature": "0xbacd07c1589dd3fa50a15edcfc0ccf7ffa298134f79d0d8669acb6926c9ce24b753f5f64a48888e92bc9c6b240d0022dd0368bf2d450d03f3c7af048383f2d461c",
    "signer": "0xa0505f485c1368eBc751046C288c23ea6263CDB3",
    "userId": "401700982"
  }
}