{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951995708",
    "entityType": "User",
    "nonce": "0xfb3f1397fb693c6fb4bd7f929426bd3a4f46dd11a8663ec7135257a3fbe4bfa5",
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    "signer": "0xc2c6810DEdf2603EDe939aA892eB628B2D743906",
    "userId": "958345764"
  }
}