{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "424610752",
    "entityType": "User",
    "nonce": "0x4f67a625c0bbfab1db9219bc84bdd19459a5e49cbea26aef86a6f0647dd3717e",
    "signature": "0x4237660b75a6363e134ad644ba5d34558ddd6f64860f987f8607706d1945b15a4a00daf39cec55b3fc4b3a4894c9d9f32bb011094fca7ca426c34ec426227fc31b",
    "signer": "0x5db87c3Ce66Fd4Aa66b370Bec004f8fD5e8F6d16",
    "userId": "184678971"
  }
}