{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0x416dc250661e8d1870314c953fc299528cba3b06e8b287d51157901c92d96718",
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    "signer": "0x0EeC6f3E19Ab6e181bD36137D630E24db27D1950",
    "userId": "113500532"
  }
}