{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43c8794753bbf24521c04b07dc88f9d864c930d70bbc200b38c02d8d2130a193",
    "signature": "0xc2084fa94d0ea6570a0ecfcf957fa488bef104d31d119b9b15ca92dfe6d1acb4515be5cb6025c141178c5bb9b90747be6f238c73da8097a957646e127d35753f1b",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}