{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154535356",
    "entityType": "User",
    "nonce": "0x58c92523bdf0d5f56701f6d4263e55a3d393ff55b63cca50d371df7d9ce7658b",
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    "signer": "0xD65418037f9b8653C61558a6A2445F39631E0789",
    "userId": "247970151"
  }
}