{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4d7f79fb79d4258d2ecc39994147acf6b1b8c22b26329f0613bc215a164c1e18",
    "signature": "0xf80f51c148c90ca0001c3f018adb5fabce754a30539b7355eb579ceecaa01ded429b5c2885ca24e3c8a78c0a496b7f4cba19504610c20bcb442d1ebffbfd1bf51b",
    "signer": "0x8D14071Cd3fF310822709162701CEE2bB0dF6569",
    "userId": "88412221"
  }
}