{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "972435607",
    "entityType": "User",
    "nonce": "0xeb1351d44d81504b93f42201c0f41915e830ca26708f46b7f8a6ef05733860b7",
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    "signer": "0xC1896EAF7ae2431A08647A163291b5a8A0cd2a6C",
    "userId": "185209372"
  }
}