{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xedeef2c690ce447911b342eb6f9b79968d7c15223799b79e2ca5630ddbe25b46",
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    "signer": "0xB8f8B5d3F3Eb7280BbD8BF51709df5Cd46820Fe5",
    "userId": "234784224"
  }
}