{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x97c649a83e509bf716c1a80882b89c5b96830738c9cdd403d511f88ead9aba6c",
    "signature": "0x319c36a09ab00a7f9f7e1bcd1db99a09d78501bd989f499e67a5dfdda908a101230b9915ebdf231fe9b713189267b9360c281467033770d9528a727bd2dc46c71c",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}