{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "399133",
    "entityType": "User",
    "nonce": "0xcac8ac9960d6abfc15ceb47c5f8aff7edc6207251dda73c13317e6017f302de5",
    "signature": "0x346d55c0b5cbcd4c908017934f75b542ee23cc96122886f6ded3b1a54583d9f16de6f07d015d65bbe5fedfc2927c1b580e9058666684c29a51fe8ab1e21b19c61c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}