{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0xc71408dd4cfd3138376a87a510872b53d369993524fd6d2ebda79d65316d4c8e",
    "signature": "0xe2ccbfe69b3575719ab5222dc3bd17a9dfaeb8ffd1bf9a52799dadbea21b6896433db644fca726b535262ea8db54cc712a8d353508f577d17b67bd8db84973751c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}