{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x30e671666100f6d6ce5a8701d709a5385712d5834721eae9d82470c4261e9afb",
    "signature": "0xae6c18bee6bc38041e6e39d9ca88a9616269e506206af6cd9c1c9482659e85ce401f8202aa893da815515584e339047ad38767bd4a5047582bdad94ec742ee0b1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}