{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "205075370",
    "entityType": "User",
    "nonce": "0x9471b56904d73b2df765f31bfe9a2a7df70f8b04c58f1f710b528166d22e5345",
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    "userId": "194739121"
  }
}