{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "570740739",
    "entityType": "User",
    "nonce": "0x9eeda13cde91b82cdc5c5e748ad2e09c2f05f66ec24b07523a78fa21f5bf5d8a",
    "signature": "0xc3c13933e6f07058b7f9246db0bf9822fbdc459cd370c954f0be58accfd96130319a150e31259392d6c0fcf69e9a36741c2b183eb3de084a846568f176b56e2e1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}