{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136781",
    "entityType": "User",
    "nonce": "0x56c12fc6032bcd5a288c4f08792749eb9eb126557da0715cd5f43c4e59bb0c44",
    "signature": "0x76e5450b3c075e7cd3ac3216fea0e73cb1697a598349f95d8174f8e095e638eb18c87965cb3b678e9da79ce3b2b1b2a2ac84698d396f3914ec77c8255160922a1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}