{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xbc618e725cbf1832d29d7bccf65b5a90cd9f934d55d1bad747c33d5aac33f27d",
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    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}