{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57280",
    "entityType": "User",
    "nonce": "0x45d543006a49d5c27d33e0df895407586f03ff766f09a5840e054cc9c7bdda3c",
    "signature": "0xe154b59e9ff570cab292b5d0c47029dc7ef1ef3e4058242f9aa3fc4ff1fcfd7f0d90ce81e8adaa6e509177d5c0aabcefe1ca6d345bd6d8ebd7aedfaec4c8111a1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}