{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "126863509",
    "entityType": "User",
    "nonce": "0xed4d3c6be15f96e24378807cf7eb7b032ccbe9e7980b41d66fe3413a6aa9bcf4",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}