{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135129254",
    "entityType": "User",
    "nonce": "0x8ca5396e31ffd252adb67b79a0ef9bf2d223c063aa9ead229f85f61ec69c8a1e",
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    "signer": "0xC6897930bFC572ae5E08D84b9a827638A4431A8f",
    "userId": "499274866"
  }
}