{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "872142418",
    "entityType": "User",
    "nonce": "0x0d88f2d2f1a44b9559079c21f0a39379e939a843971278afe1fd733aeea2cf0b",
    "signature": "0xffa554ab1316a50d2bcc16eddc78aac9177c7f424d6c7a1d0f22a8c11770b6de2244fc9cd051f7d811e910fab1cda4772710fff28c360e324f1b873456e394221b",
    "signer": "0xcF1BC458908F84936B19Ca8Cf67C751CD647B02b",
    "userId": "310796"
  }
}