{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe72d260d3cad4dd3b284f4931f218041520d2651f94ba3345200ce118703d10f",
    "signature": "0x76638e60ad04762bbae9f672e9551741da1cdbf2486e4e25b0f39f2dc73ef86d63e64777eed4a3d629efda5a9c7b94dc28bae6714bf0f37e8224f1f3b170e4b81c",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}