{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "88849",
    "entityType": "User",
    "nonce": "0xca52e1d1ecd75480785d549c02cf8a022012c86e8a494eaa6d44d1124162180a",
    "signature": "0x08046a78198aa55af3c51c837110c0ab94bf0d7e503db9db94ae005903a3186e5f5bb5ceac8327fa81022561cd089e2e5cc9595a6b81b3c5487ddfd9f87ee8221b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}