{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0xf94fda7010d5ccd6cf1f869d9f66e54c04bb4a077593e30b53f9e8b18ffe7c3e",
    "signature": "0xc25a32d41f1a84d5c658cea96d2ba09c641c6666c7dd7f0bbb96c4f4db6bcbd151ce15c8382aaf61819f8cab648e8b266ea27c3ad3118cc85e569b1698f381c01c",
    "signer": "0xFE17Fe2677AF57d35AbC9CeafeA4FF91C4542293",
    "userId": "934065758"
  }
}