{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709077025",
    "entityType": "User",
    "nonce": "0x28e82fb8d92d19345c67afa7da78663c988bb1c099bc8b11ede7e08b44dca428",
    "signature": "0x8efaabb79d92a45e74d5f37d557310a4bd40f96c10eca3949452948940ffd6096cb941a5d752ead94154b1de04d522f6d6a4ef7932bbed72fff4219929cf01011b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}