{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85ca29c00b4d8d6ed45e89987fccdd6c7035239346d2c7429bcbdb58a52f376c",
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    "signer": "0xC01b758051d808F1c32Bd420F53998b665D2291A",
    "userId": "80482420"
  }
}