{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592353919",
    "entityType": "User",
    "nonce": "0x41e36686e9fdfa9d7b08f7a8bf92e51fbdf22e769fede9d5b3030d7916d13c6f",
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    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}