{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109743",
    "entityType": "User",
    "nonce": "0x52cd4f50d081273165d326a818029339c1c20eb2f4f18714019366563d999f85",
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    "signer": "0xC3B8Db4fD6b5608e625Fc02e4e8B7a274B7dB687",
    "userId": "110486155"
  }
}