{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x42d2ab675f000e02d7ebdf0e6c9126b3fe51abd4e13003058a031a003e36f1db",
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    "signer": "0xC8a2D4De6500FfEb2FC29DF459E04c65307Ec114",
    "userId": "595622456"
  }
}