{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328228955",
    "entityType": "User",
    "nonce": "0xf87a426bd70427f94158d9fd8216ffa271fdcfcc90987771c9f93d7be1d6b877",
    "signature": "0x3ebf4edbb1c00a6e29a9e4199460e9ae3f9bb2da4cfc81f749b7b8ea33b1746626bacc30590d32f46086685432d3428670e1bd4fcbf01a9c233fe307fb94f4f81c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}