{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1581756864",
    "entityType": "Event",
    "nonce": "0x7211b26585d6553421913d56cfa4e658cf959c8d52e0645f758d25f101b7904b",
    "signature": "0x20d854c7e752b11589cd92dcd12f3e67303191e23b7a36357842512969d184e75b3018ef6f0f79dfbd159fecf0a0ffe775a4179de3ac024f70d8b35884e062881c",
    "signer": "0x09531eed9874226c9e2D4b22C7B63176b02FD069",
    "userId": "615703"
  }
}