{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304857543",
    "entityType": "User",
    "nonce": "0x285cd671d2cfcc274d83f2c180b87e6596ee90a179375d9ebc24d75d2ca86e32",
    "signature": "0xbef5a44f98e887e63d91b981dc3b864fa57011c6f21c3ca999ba59cb034de5ab42be438cc13c31a7971b711cd3f6b278fcd299cacbeccbbab252e2d73e40e82d1b",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}