{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0x5f5e2ae24a97fdd7e56ada20d7ed0c7fc0fe2890f7a1d3cf1b220e9d4016ebac",
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    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}