{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x802661ec0a98eb5227a097afde2988231d738b9bfea5cf945973bb54921f562c",
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    "signer": "0xB9cEc556fCC8ef798bd80c79aC6631122F693A87",
    "userId": "492038763"
  }
}