{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752371160",
    "entityType": "User",
    "nonce": "0xf2cd73de4ae06a5c8d2273bfc6a909a7c1e98f1a97f2d24dd795e3e124739c43",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}