{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0c115de2c0244904fe705892e6c7319a4887fab3d0c57d56eed1b46f3c087550",
    "signature": "0xcdef969afe0bbd9b463eec23f3498fc586a42fbf2125567ccd301f57d6ea643e7b8bbbdacc9f75f5776fc547645c57c4f8b47f5c4ccfa5882e1adb4341e5ddd11b",
    "signer": "0xa680583e9377AcAFFDB64e917eE34337B4D44ee9",
    "userId": "827499600"
  }
}