{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106406",
    "entityType": "User",
    "nonce": "0x850211221c55ef504fbc1591dc434d8011a616eab78150bc0c4acf5ed26f4b87",
    "signature": "0x0e40e2ed8273ad85a0ada3539b1fd790aa4ebbc489edb09a402af3db27c9ebac076aab9fc07aa36aa1f50cd045e8f195a76ba773ba1c48f30c6cc2f67c02bdd91c",
    "signer": "0xaF260D56498a2d61b204aBc5CAdCbEc98465d11b",
    "userId": "219894195"
  }
}