{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x83449dd8bee1010283b31abcf566345453cf00b31e146f5321cb587b306526aa",
    "signature": "0xd40caa007c99d8bf228a5c5ec175cbec0a9ad70f0a5e1ca35f5a16743114b43d6736c1f4f11c39e633814f7ef124ac831dfe80bde845705da3562bade60b1b1f1c",
    "signer": "0xB874f4621c8c59121feacEaD49e379Baa95ebC5b",
    "userId": "480497000"
  }
}