{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28004",
    "entityType": "User",
    "nonce": "0x14cf5ce48238a8b827f99fc5a2c8efe12b4039aec0beb2e5855b16d790bd4fa3",
    "signature": "0x61b7b14d27568f93121d962281426794af311ded7ab9811e6c7f1acff0f685dd6f037eed42b7895706157ac31ecc9b394375b90a9ce73184b6e0a3ca6bd922df1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}