{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0x41aad9b8b02a79679e7b08628804176cd13d1e8659021eeac838ecd3326c92af",
    "signature": "0xe12517f60e4505f0a1912c6928c7231dab41de42d4fd8e0927c2a35a1c27e16b50e0026fbf14126e4650df5650efafc22b05e8bf5a422b3847bc3514652b72a51c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}