{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "239411",
    "entityType": "User",
    "nonce": "0x580ece15799d8d770d09ed271b4fc46d87d44090484b634bf0c925f5cbe46e34",
    "signature": "0x0b713d8df3ce0747b5992f5f96ce771ecfa8107f291b26f7a1e2d9815c47050e23ce58f88f39e7358e53322408e5cb78e338102bb4b653fc39ad28f1e707e45a1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}