{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137845",
    "entityType": "User",
    "nonce": "0x3f3b64cbfb331543eaa5248b72812005d36f8ee28b071a1c9ab43ecc1f117397",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
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}