{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "331846",
    "entityType": "User",
    "nonce": "0xe9390201e2a31d5938e4f8ad4f84cd60cb0ec55c8b4cb2a59b0ac1c499d5e8e6",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}