{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "917339310",
    "entityType": "User",
    "nonce": "0xa6fff0005102ddd177d46b840be73b6e19218f87ca313333c4318240b77f1f00",
    "signature": "0xbf28f9215383951f4f9b5fbe1e41dbcd0d5b8cea26c361245aee53ecd02559e9173647de3e58734458e5f380afbeaee93491727db7023ae3ee7ad605aa34e4511c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}