{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392153838",
    "entityType": "User",
    "nonce": "0x4ffc18e6f747a762be4708a8c9d2875c2aa16a6a7a2435cd4f2c12dd75632ed1",
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    "signer": "0xD65418037f9b8653C61558a6A2445F39631E0789",
    "userId": "247970151"
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}