{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "939113546",
    "entityType": "User",
    "nonce": "0xe529c9ab7d10c44962f09693f1117cceb49348c5bbafbb1091de0cb8dcc6f1e9",
    "signature": "0xe756b743eeff60dc53a9cd54f6ec4e1f1312dfc76d70cb56d053166da4e76c215d76b2a6836b2349cc056502dbaaf13b3d692f3a5795dd16f8391ec6316fc59e1c",
    "signer": "0x019c1Ea6f901A4f7AeAa1daD2842a34Fdf9A9FB2",
    "userId": "798348033"
  }
}