{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346849",
    "entityType": "User",
    "nonce": "0x97af85b14bec8070a4192db0d93340c36c72017c0a32d72d8a638fd724e98a2e",
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    "signer": "0xC904b74a04E95F05A4CEC153C71EF75FdFFcD5CF",
    "userId": "962203192"
  }
}