{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55875",
    "entityType": "User",
    "nonce": "0x9d9ecac98005a16f47f8e6c4118bf8ab8aec5f76a30670faec45e623e98a10a7",
    "signature": "0x04b76d86c32db003df60fa0494fb5a7e48035f668e4304eb2380acf4cbe872f03aa8f0ce0a54f7384a95e64e010e4beec9735e89b32c40bb30d5026847898a941c",
    "signer": "0x38c65d779554649264FD5A23B412Dd6237e675c2",
    "userId": "839739705"
  }
}