{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299215",
    "entityType": "User",
    "nonce": "0x12eb5e428d0e4d187da5c25bdfd2e421ef31b1bef4d8f8d8f13125849408f558",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}