{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0xe986900335965c1084a7f2d30e4f3760b2b79da80f82a6375157f3fa416eb19a",
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    "signer": "0x20690bD900B04126EBFAF3620E46F1645188CD62",
    "userId": "16326"
  }
}