{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108733",
    "entityType": "User",
    "nonce": "0x9b1bc802c35bbaeb4091b2a2a70e1016d80526ad7df70b7fd24455c154b37ad8",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}