{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445877354",
    "entityType": "User",
    "nonce": "0x34a8f242d30a9413ff3b0e495101571278d7da039115c9d668125c72d3365e9c",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}