{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0x5b9abe866495ba239b0be3f6f154abe97d48aa4033e7b5cdec2771b29b351fe3",
    "signature": "0x4e0c421681ecfcf4ec810cbb163e2020a176f8c794eafc602e3f72966cad089b3e35b44d58b68b03499321d4ff1626ed53e2c7ed01b4b242a056d7fe6a827a371b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}