{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab60633e8a4347089a5ffc9aecac1fdbdd5b3873adbd14141a4f61463311af61",
    "signature": "0xe8af77523ee79c3233bf5648585b25c570091d48e887df8d419df61af4a714f945220b8935b09fff33c848fc424eee23e5685aeeefd7edff69f0587633b004b61c",
    "signer": "0xE6f8D066d8911cbC0456Fd7fd7050C7ACccc4e4f",
    "userId": "777613722"
  }
}