{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5339",
    "entityType": "User",
    "nonce": "0xf2cb90611db1a5321f7938fe539287b177a289204e53d6f9db2eb5f8aaf6c841",
    "signature": "0xe3421d0e3a33259310e56e0a9652ceb253eb741325ff269edf0b8d6b137572fb313e3326aa4bdbffba45edf42029492367297c7dab789857441772318f20e64d1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}