{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159054652",
    "entityType": "User",
    "nonce": "0x890de3aa98e98a87799276129eb8f89ba7b4cfa35c65dbcbf9dada1bb8df5a08",
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    "signer": "0xB83e22bD8194C5316D7640fff23024a851d425bc",
    "userId": "72245897"
  }
}