{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe984778f358ed685caf2ad171d5d261e77c2f993899d06198e91534e91fdc472",
    "signature": "0xd32931ffd4f40c43cf480e800ef5c431d91530f6faae3083be3ba7b935417d8929845e1d57ff42bc9c4223ccf04c63056a19a33f2c7aac38c8b57865bcea2dbd1b",
    "signer": "0x770fCcEc013f46cC8986C652B0670e7e0d73D20C",
    "userId": "97845937"
  }
}