{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc93073130377c1b6e898b566c565f2748dc501e6e4619af3f0aea29b50d45dc3",
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    "signer": "0xB5452FE324305f5726552be1c0Cf8734f95F9e9d",
    "userId": "358671973"
  }
}