{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5450",
    "entityType": "User",
    "nonce": "0xedef5c239e4278f88b64ff5cdc724bbe58930f9b6082cf1dc44835f1e176f316",
    "signature": "0x1e1ed67af8f788249104c893f02ab6581677a3c5a3daa26a628f9c75a92b0bc835bd28eecbf6a3d6e37c41cf9640a46b3a59a600ce637a265c279bb4f1ecc4fb1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}