{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "532310468",
    "entityType": "User",
    "nonce": "0xf73a6dd94d28b69c82127d6cc4942dced69c99beef4cddbb1848d69d0a156da0",
    "signature": "0xd94742b72292501d72f76676726037a09d39eb4a590501304123463da6ec331c5b08f794f511fca74ca9aeeaad33a1106616ed874c306eb7ade86b87a9c73d1f1b",
    "signer": "0x8C7Df56F0ee66D94008122eBC90aa6FF2F54242c",
    "userId": "243927361"
  }
}