{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae99eccf3eb1933660eac40b9610d11859093dfd2f739b1386bec2f631d9bc34",
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    "signer": "0xC30AC2fB3d662DdB28d2d773D62C6dB967b17562",
    "userId": "791523330"
  }
}