{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcb4b7da3ab4cf366f5f683c0708ceecb3370d23b21843e42b86df5503f8658eb",
    "signature": "0x0f1bbde633339d92b904b7f7586601ae28c63491f3a6e58f56c2cbe33eef586f16c7de1bc383ea33dc2591f266d56942d4a6a5ae6fe93feb0e73defc4caaf1071b",
    "signer": "0x13839b1F022D94fAb7C05558747a2F686429366D",
    "userId": "133653253"
  }
}