{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5074",
    "entityType": "User",
    "nonce": "0xcef3b5c2a1b93b63683bd480a4c1915a8ebd4d7e41c04a07d7db4804f5c22049",
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    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}