{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x78e8de204c411b08f54796fafded7a0f2ae831e07b1bea611d490ed3ae3e9143",
    "signature": "0xd9c2331eddfa7dfc5d619a2a57a532fbd29a60cc269e51cd0c526fb51f5f5b270531cc028a777afde599265556701adb860f8e45b024e21a39aacc55914b180e1c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}