{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54858",
    "entityType": "User",
    "nonce": "0xecf1235c9404e8c003ca2595bae0e06af4a8cd306756ab300d14d63c0a386f1f",
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    "signer": "0xB63c8A7B935b55823f383e8f19B6207FB6b31168",
    "userId": "330374208"
  }
}