{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xddfc6c741cc72e1897008e1eef7f25c981e023f1476b1768a6f52521d557904c",
    "signature": "0xba5e28d9d4481e0da2f98add3f176da4f9127012431a90418f24ba4618047c2e1ac82106896a3f7f54bb864eb638f3d2f8406d91063f94668bc116e45960b11b1c",
    "signer": "0xC285baD86b80c235C03d1Bc0C2a1f1aa1302A1F6",
    "userId": "260772518"
  }
}