{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1385998271",
    "entityType": "Event",
    "nonce": "0xb3d0b2c0670bf7cc78b53459817444b7a9807d97393c76932eed6ed4d8436c4a",
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    "signer": "0x26533aa9EdEf3647F06cd135f341B7a70A3B7d59",
    "userId": "355733"
  }
}