{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0x90132ba85e499bf343154bc6781b97fb68705c6a98a1bac859af56aaab0b39ed",
    "signature": "0x90b3f93a3890e15c9715267f47c2933db0c2d6b95032bc2f717427dac1b5682620a0e30242867cc2cc97a90b88a8a0294afa8ff6c54185fdb79d18094fbbf8c51b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}