{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0xcff741ed18b9dde85fde8cd925987e5273c444f3cc006dc7a54c0f0cb72ffd08",
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    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}