{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "931612513",
    "entityType": "User",
    "nonce": "0x5d4c7d7968271963cf70c4adfaad0ed3891a8a7665baf9ca51ee8b595c8f8e82",
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    "signer": "0xE020146C7aCDba5DC9524606CE182F8A3c1BAF36",
    "userId": "294330"
  }
}