{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2acda882deaf063ca5abc3b4aae0dc35b0d31bdeeea41cf195f23c82c79adb62",
    "signature": "0xb652b61fc459b982e1cdda3fd94c4f7ca149cbc848013bbd79793f8c82fd93e9330bbcbfd5db89bb0944902d02b82c971b1c8d819393d99012a9aa45e614bf4f1b",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}