{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141170",
    "entityType": "User",
    "nonce": "0x02fffc39be4f7c92a4917cdb0af5212b66ceecc858bf3501e3da052d51407fbc",
    "signature": "0x82773fa7bff4332cfb6af50fd048a7ef3b57f42a583ea132c22e5fb22050c9fb5eb4fc6c36cab7a561ee81a599eb7f5bfde95e74c057e96c87e39430805cbb541c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}