{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "174576",
    "entityType": "User",
    "nonce": "0xdd66872369802421b05ae71b7f61094926b89982fa36cfaef73a80ba231cd9dc",
    "signature": "0x67eef3a798a478c75bd43c53a3c0650099fad0a67da9c78b92d8532f7550460f4b45650859f0119e3bceaccf82d78b57d27d1e16fa1b74d6b04f3963a924bfc91c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}