{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494113495",
    "entityType": "User",
    "nonce": "0xc909e2d6a8a4d7a80092addfc349b2569d0ddc315b384f3ec5e8198252ca19e6",
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    "signer": "0x11EFeB5E02d1E5FF95b12f694953DC15ACEc8bbB",
    "userId": "191130508"
  }
}