{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "689522885",
    "entityType": "User",
    "nonce": "0xba919467df36665ae794493ef8443aa16f2d54297b4a22a6e6dc2c0ff37b22e5",
    "signature": "0x653f5c8d6b6da6468d297b650fb750cb347f681c1b92dcfa252c84cfa8cb12a51fc3d04f5d5aeeb2b46bafe367854d4b9ebcc4566e75c723900958536da0a49e1c",
    "signer": "0x350266070634B844e53111Da688884106bd3E443",
    "userId": "753462297"
  }
}