{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb132b5c3405319435fcb3a2491a7b73b7ab7f8fd6b69a429c04de754db12670a",
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    "signer": "0xB1FC6Bd0C1F79C1023a5c35a5eE48df68594488e",
    "userId": "215504694"
  }
}