{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56748",
    "entityType": "User",
    "nonce": "0x97833549ca73b43c9f8691235217fa009c5f64e262e3664e10d612a2cd864ee8",
    "signature": "0x16240009ebdfcd36d07dd2385edf30281058d6cfb0351657d31aac854e488ae73d7d40b9b235f45cc175e61b13c01edb1df17a39f676be59b1904ff2959f9b5b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}