{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x97a08068bdb8746113ef1477005578987f6128104456b53e5f3b523482fb274f",
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    "signer": "0xB02c00216F9470d4e900860B7432a67E08f9c2b0",
    "userId": "931626376"
  }
}