{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x21e453038033fdbccb26fa431a55ecf81cf93294d395c52c9191955a4eba5a05",
    "signature": "0xb270d400d62946fe4024ed0f146826bdfde688495f99416f23f534741e05b2a150b1e43ae77920ea5d47d746473133b78d0aace23d5b5ae0c4c3ae548dd52f8a1b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}