{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x603bd389c04babc47cdc77c1a6adaddcad5b6497d826412abba83c1de31316c2",
    "signature": "0xc2d6665e2ef3bcacab9bea3dde96140e1339f370b01450af79a9a96e898e7f3b75475eca6059c99f583c6a13a1bfa5253616cbd0e689c29198c00dafef678f141b",
    "signer": "0x38c65d779554649264FD5A23B412Dd6237e675c2",
    "userId": "839739705"
  }
}