{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "427414470",
    "entityType": "User",
    "nonce": "0x648894021efbe2d7f1a5f3085e6a7dafe5147ada989b3bb18c43438de9ca7911",
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    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
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}