{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc5adec781a0508960efc5871b42fbae5f3c77b95032f02ed98a055920f76824e",
    "signature": "0xcc7f88bc983f5194aff793e13eecf2c1bccb7b2ed40cea31c13e6a5fe23b0d3326b444d7f4053204dc1a3b86002e65a83c60d79117d553ef520d3b8cbdd830231b",
    "signer": "0xe083C6657964CDF8edDa4A2141B67047B9816C35",
    "userId": "861832117"
  }
}