{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172889990",
    "entityType": "User",
    "nonce": "0x36b497cadbb90a7e903c75f428ccd8b91f9c816aeda53b1a9aa743dd4b8df3fd",
    "signature": "0xb5250c925f26909c177ebba29ecd32397f66733c35f9eb953c32c7ad6d2c4eb66a3c300225471dba100d9f4fbacf91860616ab64f550f2ed676d6e53b66b27b31b",
    "signer": "0x3Ec98fFA47eF7773803b73964753B99Ae2D50f41",
    "userId": "545926315"
  }
}