{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397192",
    "entityType": "User",
    "nonce": "0xee71d922ee4a807f4c3a11546351c23f04ccf67fc7b9fb41201e1491d6e15b21",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
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}