{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0xff0d12d888214bb61692ff845253224cc454799c6018136a0cdc349cd733222e",
    "signature": "0xbbc2af526bbe3a1e6a46039057f3bd46a3345e934058928da841f05996b72eea52c082588a280fe648bd8165174b31fbf81b816833a8adcf5bb0e6c79ea686151c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}