{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390804",
    "entityType": "User",
    "nonce": "0x18d26e2d40bc5c42d1229d40149420974884d6ea40a78d2112cfecaaa12338b8",
    "signature": "0xc1d0e1f8ddece83e4449e828e4cb5a77c2a2e8abd7a5a0e2feccc3529b9c1d334b72a33614bbe00d4b1553b41f1645d19282f5c9750cc97247fac023163f7ff81c",
    "signer": "0xcCa2F763fbBDc21A1551dC866A06A4Ec74063474",
    "userId": "174400"
  }
}