{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0xdc3fc5572a3291989e9ca8482a5b0802b42bbc81b6a5ddbcae53c0042666afa3",
    "signature": "0x6e646e2e4ac78748c15ce6e8ace5c1e724eee7e3da0e8a34dd921dc695b788576f47cc8f4baf9c84ecf5fe78bb669b60c48a4a62b7842cd3fd526db42fa30ffd1b",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}