{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57556",
    "entityType": "User",
    "nonce": "0x3d649ab4b1cacdec9c1098ce4b6839297d9d1ac1f76499d9ab5e8aa38a3df7e5",
    "signature": "0xe54b6c1db41d8de0df50f018b150a52ba7e2943a8b1ae20bf8e402750e95158f366789aabc48c13b7960bdcb5b8e215d71004a6e905e235d12fd3683e28ac9ff1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}