{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0x83fd1569de9a02b052e85083c118d8ea7f34d9ba6c4d8310496c273a85045029",
    "signature": "0x63e5001ca0231d4539b9346d8c10298202a04836d18450bcc598ca9438c8d22b3fe529733ea9f8474e521a40c8e3b5e9da4607dd048b7900aa035895cebb6f661c",
    "signer": "0x1F7AD5e639e74f62C577d6ee9140C839b0100481",
    "userId": "513323235"
  }
}